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Finding the Fourth Proportional to 67,766.96, 93,529.80 and 39,489.44

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Solution

The fourth proportional to 67,766.96, 93,529.80 and 39,489.44 is: 54,502.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,766.96 : 93,529.80 = 39,489.44 : x
  2. Step 2: Convert to fraction form
    67,766.96/93,529.80 = 39,489.44/x
  3. Step 3: Cross multiply
    67,766.96x = 93,529.80 × 39,489.44
  4. Step 4: Simplify right side
    67,766.96x = 3,693,439,425.31
  5. Step 5: Solve for x
    x = 3,693,439,425.31/67,766.96
  6. Step 6: Final answer
    x = 54,502.07

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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.