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Finding the Fourth Proportional to 71,410.46, 98,542.52 and 39,577.46

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Solution

The fourth proportional to 71,410.46, 98,542.52 and 39,577.46 is: 54,614.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,410.46 : 98,542.52 = 39,577.46 : x
  2. Step 2: Convert to fraction form
    71,410.46/98,542.52 = 39,577.46/x
  3. Step 3: Cross multiply
    71,410.46x = 98,542.52 × 39,577.46
  4. Step 4: Simplify right side
    71,410.46x = 3,900,062,643.60
  5. Step 5: Solve for x
    x = 3,900,062,643.60/71,410.46
  6. Step 6: Final answer
    x = 54,614.73

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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.