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Finding the Fourth Proportional to 8,475.30, 12,713.49 and 2,929.14

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Solution

The fourth proportional to 8,475.30, 12,713.49 and 2,929.14 is: 4,393.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.30 : 12,713.49 = 2,929.14 : x
  2. Step 2: Convert to fraction form
    8,475.30/12,713.49 = 2,929.14/x
  3. Step 3: Cross multiply
    8,475.30x = 12,713.49 × 2,929.14
  4. Step 4: Simplify right side
    8,475.30x = 37,239,592.10
  5. Step 5: Solve for x
    x = 37,239,592.10/8,475.30
  6. Step 6: Final answer
    x = 4,393.90

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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.