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Finding the Fourth Proportional to 59,902.93, 89,842.65 and 19,915.66

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Solution

The fourth proportional to 59,902.93, 89,842.65 and 19,915.66 is: 29,869.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,902.93 : 89,842.65 = 19,915.66 : x
  2. Step 2: Convert to fraction form
    59,902.93/89,842.65 = 19,915.66/x
  3. Step 3: Cross multiply
    59,902.93x = 89,842.65 × 19,915.66
  4. Step 4: Simplify right side
    59,902.93x = 1,789,275,670.90
  5. Step 5: Solve for x
    x = 1,789,275,670.90/59,902.93
  6. Step 6: Final answer
    x = 29,869.59

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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.