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Finding the Fourth Proportional to 61,742.79, 92,515.77 and 39,537.90

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Solution

The fourth proportional to 61,742.79, 92,515.77 and 39,537.90 is: 59,243.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,742.79 : 92,515.77 = 39,537.90 : x
  2. Step 2: Convert to fraction form
    61,742.79/92,515.77 = 39,537.90/x
  3. Step 3: Cross multiply
    61,742.79x = 92,515.77 × 39,537.90
  4. Step 4: Simplify right side
    61,742.79x = 3,657,879,262.68
  5. Step 5: Solve for x
    x = 3,657,879,262.68/61,742.79
  6. Step 6: Final answer
    x = 59,243.83

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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.