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Finding the Fourth Proportional to 14,468.72, 21,687.12 and 9,469.04

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Solution

The fourth proportional to 14,468.72, 21,687.12 and 9,469.04 is: 14,193.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,468.72 : 21,687.12 = 9,469.04 : x
  2. Step 2: Convert to fraction form
    14,468.72/21,687.12 = 9,469.04/x
  3. Step 3: Cross multiply
    14,468.72x = 21,687.12 × 9,469.04
  4. Step 4: Simplify right side
    14,468.72x = 205,356,206.76
  5. Step 5: Solve for x
    x = 205,356,206.76/14,468.72
  6. Step 6: Final answer
    x = 14,193.11

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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.