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Finding the Fourth Proportional to 15,299,781.80, 22,949,672.70 and 5,202,402.80

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Solution

The fourth proportional to 15,299,781.80, 22,949,672.70 and 5,202,402.80 is: 7,803,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,299,781.80 : 22,949,672.70 = 5,202,402.80 : x
  2. Step 2: Convert to fraction form
    15,299,781.80/22,949,672.70 = 5,202,402.80/x
  3. Step 3: Cross multiply
    15,299,781.80x = 22,949,672.70 × 5,202,402.80
  4. Step 4: Simplify right side
    15,299,781.80x = 119,393,441,513,563.55
  5. Step 5: Solve for x
    x = 119,393,441,513,563.55/15,299,781.80
  6. Step 6: Final answer
    x = 7,803,604.20

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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.