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Finding the Fourth Proportional to 8,167.60, 12,253.13 and 4,659.29

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Solution

The fourth proportional to 8,167.60, 12,253.13 and 4,659.29 is: 6,989.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.60 : 12,253.13 = 4,659.29 : x
  2. Step 2: Convert to fraction form
    8,167.60/12,253.13 = 4,659.29/x
  3. Step 3: Cross multiply
    8,167.60x = 12,253.13 × 4,659.29
  4. Step 4: Simplify right side
    8,167.60x = 57,090,886.08
  5. Step 5: Solve for x
    x = 57,090,886.08/8,167.60
  6. Step 6: Final answer
    x = 6,989.92

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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.