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Finding the Fourth Proportional to 26,812.40, 40,218.60 and 22,438.40

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Solution

The fourth proportional to 26,812.40, 40,218.60 and 22,438.40 is: 33,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,812.40 : 40,218.60 = 22,438.40 : x
  2. Step 2: Convert to fraction form
    26,812.40/40,218.60 = 22,438.40/x
  3. Step 3: Cross multiply
    26,812.40x = 40,218.60 × 22,438.40
  4. Step 4: Simplify right side
    26,812.40x = 902,441,034.24
  5. Step 5: Solve for x
    x = 902,441,034.24/26,812.40
  6. Step 6: Final answer
    x = 33,657.60

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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.