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Finding the Fourth Proportional to 11,862.10, 17,793.15 and 7,498.90

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Solution

The fourth proportional to 11,862.10, 17,793.15 and 7,498.90 is: 11,248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,862.10 : 17,793.15 = 7,498.90 : x
  2. Step 2: Convert to fraction form
    11,862.10/17,793.15 = 7,498.90/x
  3. Step 3: Cross multiply
    11,862.10x = 17,793.15 × 7,498.90
  4. Step 4: Simplify right side
    11,862.10x = 133,429,052.54
  5. Step 5: Solve for x
    x = 133,429,052.54/11,862.10
  6. Step 6: Final answer
    x = 11,248.35

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Half scale
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Double scale
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Similar ratio
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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.