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Finding the Fourth Proportional to 28,462.87, 39,275.78 and 16,523.87

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Solution

The fourth proportional to 28,462.87, 39,275.78 and 16,523.87 is: 22,801.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,462.87 : 39,275.78 = 16,523.87 : x
  2. Step 2: Convert to fraction form
    28,462.87/39,275.78 = 16,523.87/x
  3. Step 3: Cross multiply
    28,462.87x = 39,275.78 × 16,523.87
  4. Step 4: Simplify right side
    28,462.87x = 648,987,898.44
  5. Step 5: Solve for x
    x = 648,987,898.44/28,462.87
  6. Step 6: Final answer
    x = 22,801.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.