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Finding the Fourth Proportional to 71,353.98, 98,468.46 and 39,522.60

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Solution

The fourth proportional to 71,353.98, 98,468.46 and 39,522.60 is: 54,541.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,353.98 : 98,468.46 = 39,522.60 : x
  2. Step 2: Convert to fraction form
    71,353.98/98,468.46 = 39,522.60/x
  3. Step 3: Cross multiply
    71,353.98x = 98,468.46 × 39,522.60
  4. Step 4: Simplify right side
    71,353.98x = 3,891,729,557.20
  5. Step 5: Solve for x
    x = 3,891,729,557.20/71,353.98
  6. Step 6: Final answer
    x = 54,541.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.