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Finding the Fourth Proportional to 8,472.06, 12,717.54 and 4,966.38

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Solution

The fourth proportional to 8,472.06, 12,717.54 and 4,966.38 is: 7,455.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.06 : 12,717.54 = 4,966.38 : x
  2. Step 2: Convert to fraction form
    8,472.06/12,717.54 = 4,966.38/x
  3. Step 3: Cross multiply
    8,472.06x = 12,717.54 × 4,966.38
  4. Step 4: Simplify right side
    8,472.06x = 63,160,136.31
  5. Step 5: Solve for x
    x = 63,160,136.31/8,472.06
  6. Step 6: Final answer
    x = 7,455.11

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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.