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Finding the Fourth Proportional to 61,487.47, 84,674.04 and 53,417.44

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Solution

The fourth proportional to 61,487.47, 84,674.04 and 53,417.44 is: 73,560.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,487.47 : 84,674.04 = 53,417.44 : x
  2. Step 2: Convert to fraction form
    61,487.47/84,674.04 = 53,417.44/x
  3. Step 3: Cross multiply
    61,487.47x = 84,674.04 × 53,417.44
  4. Step 4: Simplify right side
    61,487.47x = 4,523,070,451.26
  5. Step 5: Solve for x
    x = 4,523,070,451.26/61,487.47
  6. Step 6: Final answer
    x = 73,560.85

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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.