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Finding the Fourth Proportional to 30,312,812.40, 45,469,218.60 and 23,510,367.60

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Solution

The fourth proportional to 30,312,812.40, 45,469,218.60 and 23,510,367.60 is: 35,265,551.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,312,812.40 : 45,469,218.60 = 23,510,367.60 : x
  2. Step 2: Convert to fraction form
    30,312,812.40/45,469,218.60 = 23,510,367.60/x
  3. Step 3: Cross multiply
    30,312,812.40x = 45,469,218.60 × 23,510,367.60
  4. Step 4: Simplify right side
    30,312,812.40x = 1,068,998,043,770,757.50
  5. Step 5: Solve for x
    x = 1,068,998,043,770,757.50/30,312,812.40
  6. Step 6: Final answer
    x = 35,265,551.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.