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Finding the Fourth Proportional to 15,073.53, 20,801.64 and 8,359.23

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Solution

The fourth proportional to 15,073.53, 20,801.64 and 8,359.23 is: 11,535.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,073.53 : 20,801.64 = 8,359.23 : x
  2. Step 2: Convert to fraction form
    15,073.53/20,801.64 = 8,359.23/x
  3. Step 3: Cross multiply
    15,073.53x = 20,801.64 × 8,359.23
  4. Step 4: Simplify right side
    15,073.53x = 173,885,693.14
  5. Step 5: Solve for x
    x = 173,885,693.14/15,073.53
  6. Step 6: Final answer
    x = 11,535.83

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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.