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Finding the Fourth Proportional to 8,627.13, 12,935.47 and 5,627.41

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Solution

The fourth proportional to 8,627.13, 12,935.47 and 5,627.41 is: 8,437.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.13 : 12,935.47 = 5,627.41 : x
  2. Step 2: Convert to fraction form
    8,627.13/12,935.47 = 5,627.41/x
  3. Step 3: Cross multiply
    8,627.13x = 12,935.47 × 5,627.41
  4. Step 4: Simplify right side
    8,627.13x = 72,793,251.24
  5. Step 5: Solve for x
    x = 72,793,251.24/8,627.13
  6. Step 6: Final answer
    x = 8,437.71

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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.