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Finding the Fourth Proportional to 18,461.32, 27,691.07 and 6,773.63

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Solution

The fourth proportional to 18,461.32, 27,691.07 and 6,773.63 is: 10,160.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.32 : 27,691.07 = 6,773.63 : x
  2. Step 2: Convert to fraction form
    18,461.32/27,691.07 = 6,773.63/x
  3. Step 3: Cross multiply
    18,461.32x = 27,691.07 × 6,773.63
  4. Step 4: Simplify right side
    18,461.32x = 187,568,890.16
  5. Step 5: Solve for x
    x = 187,568,890.16/18,461.32
  6. Step 6: Final answer
    x = 10,160.10

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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.