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Finding the Fourth Proportional to 61,689.72, 92,345.82 and 39,524.46

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Solution

The fourth proportional to 61,689.72, 92,345.82 and 39,524.46 is: 59,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,689.72 : 92,345.82 = 39,524.46 : x
  2. Step 2: Convert to fraction form
    61,689.72/92,345.82 = 39,524.46/x
  3. Step 3: Cross multiply
    61,689.72x = 92,345.82 × 39,524.46
  4. Step 4: Simplify right side
    61,689.72x = 3,649,918,668.76
  5. Step 5: Solve for x
    x = 3,649,918,668.76/61,689.72
  6. Step 6: Final answer
    x = 59,165.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.