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Finding the Fourth Proportional to 18,013.74, 27,026.42 and 7,488.87

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Solution

The fourth proportional to 18,013.74, 27,026.42 and 7,488.87 is: 11,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,013.74 : 27,026.42 = 7,488.87 : x
  2. Step 2: Convert to fraction form
    18,013.74/27,026.42 = 7,488.87/x
  3. Step 3: Cross multiply
    18,013.74x = 27,026.42 × 7,488.87
  4. Step 4: Simplify right side
    18,013.74x = 202,397,308.50
  5. Step 5: Solve for x
    x = 202,397,308.50/18,013.74
  6. Step 6: Final answer
    x = 11,235.72

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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.