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Finding the Fourth Proportional to 61,788.62, 85,269.61 and 34,929.53

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Solution

The fourth proportional to 61,788.62, 85,269.61 and 34,929.53 is: 48,203.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,788.62 : 85,269.61 = 34,929.53 : x
  2. Step 2: Convert to fraction form
    61,788.62/85,269.61 = 34,929.53/x
  3. Step 3: Cross multiply
    61,788.62x = 85,269.61 × 34,929.53
  4. Step 4: Simplify right side
    61,788.62x = 2,978,427,337.66
  5. Step 5: Solve for x
    x = 2,978,427,337.66/61,788.62
  6. Step 6: Final answer
    x = 48,203.49

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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.