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Finding the Fourth Proportional to 18,446.61, 27,689.14 and 16,351.55

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Solution

The fourth proportional to 18,446.61, 27,689.14 and 16,351.55 is: 24,544.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,446.61 : 27,689.14 = 16,351.55 : x
  2. Step 2: Convert to fraction form
    18,446.61/27,689.14 = 16,351.55/x
  3. Step 3: Cross multiply
    18,446.61x = 27,689.14 × 16,351.55
  4. Step 4: Simplify right side
    18,446.61x = 452,760,177.84
  5. Step 5: Solve for x
    x = 452,760,177.84/18,446.61
  6. Step 6: Final answer
    x = 24,544.36

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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.