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Finding the Fourth Proportional to 8,614.78, 12,923.38 and 4,232.41

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Solution

The fourth proportional to 8,614.78, 12,923.38 and 4,232.41 is: 6,349.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,614.78 : 12,923.38 = 4,232.41 : x
  2. Step 2: Convert to fraction form
    8,614.78/12,923.38 = 4,232.41/x
  3. Step 3: Cross multiply
    8,614.78x = 12,923.38 × 4,232.41
  4. Step 4: Simplify right side
    8,614.78x = 54,696,978.13
  5. Step 5: Solve for x
    x = 54,696,978.13/8,614.78
  6. Step 6: Final answer
    x = 6,349.21

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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.