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Finding the Fourth Proportional to 8,467.47, 12,693.65 and 4,305.15

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Solution

The fourth proportional to 8,467.47, 12,693.65 and 4,305.15 is: 6,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,467.47 : 12,693.65 = 4,305.15 : x
  2. Step 2: Convert to fraction form
    8,467.47/12,693.65 = 4,305.15/x
  3. Step 3: Cross multiply
    8,467.47x = 12,693.65 × 4,305.15
  4. Step 4: Simplify right side
    8,467.47x = 54,648,045.77
  5. Step 5: Solve for x
    x = 54,648,045.77/8,467.47
  6. Step 6: Final answer
    x = 6,453.88

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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.