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Finding the Fourth Proportional to 7,000,812.60, 10,501,218.90 and 7,000,812.60

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Solution

The fourth proportional to 7,000,812.60, 10,501,218.90 and 7,000,812.60 is: 10,501,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000,812.60 : 10,501,218.90 = 7,000,812.60 : x
  2. Step 2: Convert to fraction form
    7,000,812.60/10,501,218.90 = 7,000,812.60/x
  3. Step 3: Cross multiply
    7,000,812.60x = 10,501,218.90 × 7,000,812.60
  4. Step 4: Simplify right side
    7,000,812.60x = 73,517,065,590,478.14
  5. Step 5: Solve for x
    x = 73,517,065,590,478.14/7,000,812.60
  6. Step 6: Final answer
    x = 10,501,218.90

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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.