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Finding the Fourth Proportional to 71,393.86, 98,524.11 and 39,563.29

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Solution

The fourth proportional to 71,393.86, 98,524.11 and 39,563.29 is: 54,597.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,393.86 : 98,524.11 = 39,563.29 : x
  2. Step 2: Convert to fraction form
    71,393.86/98,524.11 = 39,563.29/x
  3. Step 3: Cross multiply
    71,393.86x = 98,524.11 × 39,563.29
  4. Step 4: Simplify right side
    71,393.86x = 3,897,937,935.92
  5. Step 5: Solve for x
    x = 3,897,937,935.92/71,393.86
  6. Step 6: Final answer
    x = 54,597.66

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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.