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Finding the Fourth Proportional to 18,325.31, 27,486.95 and 11,306.66

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Solution

The fourth proportional to 18,325.31, 27,486.95 and 11,306.66 is: 16,959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,325.31 : 27,486.95 = 11,306.66 : x
  2. Step 2: Convert to fraction form
    18,325.31/27,486.95 = 11,306.66/x
  3. Step 3: Cross multiply
    18,325.31x = 27,486.95 × 11,306.66
  4. Step 4: Simplify right side
    18,325.31x = 310,785,404.12
  5. Step 5: Solve for x
    x = 310,785,404.12/18,325.31
  6. Step 6: Final answer
    x = 16,959.36

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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.