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Finding the Fourth Proportional to 18,262.92, 27,404.82 and 7,732.20

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Solution

The fourth proportional to 18,262.92, 27,404.82 and 7,732.20 is: 11,602.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.92 : 27,404.82 = 7,732.20 : x
  2. Step 2: Convert to fraction form
    18,262.92/27,404.82 = 7,732.20/x
  3. Step 3: Cross multiply
    18,262.92x = 27,404.82 × 7,732.20
  4. Step 4: Simplify right side
    18,262.92x = 211,899,549.20
  5. Step 5: Solve for x
    x = 211,899,549.20/18,262.92
  6. Step 6: Final answer
    x = 11,602.72

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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.