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Finding the Fourth Proportional to 8,322.68, 12,487.09 and 4,373.78

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Solution

The fourth proportional to 8,322.68, 12,487.09 and 4,373.78 is: 6,562.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.68 : 12,487.09 = 4,373.78 : x
  2. Step 2: Convert to fraction form
    8,322.68/12,487.09 = 4,373.78/x
  3. Step 3: Cross multiply
    8,322.68x = 12,487.09 × 4,373.78
  4. Step 4: Simplify right side
    8,322.68x = 54,615,711.13
  5. Step 5: Solve for x
    x = 54,615,711.13/8,322.68
  6. Step 6: Final answer
    x = 6,562.27

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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.