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Finding the Fourth Proportional to 71,294.97, 98,380.30 and 42,608.92

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Solution

The fourth proportional to 71,294.97, 98,380.30 and 42,608.92 is: 58,796.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,294.97 : 98,380.30 = 42,608.92 : x
  2. Step 2: Convert to fraction form
    71,294.97/98,380.30 = 42,608.92/x
  3. Step 3: Cross multiply
    71,294.97x = 98,380.30 × 42,608.92
  4. Step 4: Simplify right side
    71,294.97x = 4,191,878,332.28
  5. Step 5: Solve for x
    x = 4,191,878,332.28/71,294.97
  6. Step 6: Final answer
    x = 58,796.27

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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.