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Finding the Fourth Proportional to 8,369.47, 12,565.14 and 7,079.14

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Solution

The fourth proportional to 8,369.47, 12,565.14 and 7,079.14 is: 10,627.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.47 : 12,565.14 = 7,079.14 : x
  2. Step 2: Convert to fraction form
    8,369.47/12,565.14 = 7,079.14/x
  3. Step 3: Cross multiply
    8,369.47x = 12,565.14 × 7,079.14
  4. Step 4: Simplify right side
    8,369.47x = 88,950,385.18
  5. Step 5: Solve for x
    x = 88,950,385.18/8,369.47
  6. Step 6: Final answer
    x = 10,627.96

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1.5x scale

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.