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Finding the Fourth Proportional to 17,811.16, 24,691.80 and 16,863.15

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Solution

The fourth proportional to 17,811.16, 24,691.80 and 16,863.15 is: 23,377.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,811.16 : 24,691.80 = 16,863.15 : x
  2. Step 2: Convert to fraction form
    17,811.16/24,691.80 = 16,863.15/x
  3. Step 3: Cross multiply
    17,811.16x = 24,691.80 × 16,863.15
  4. Step 4: Simplify right side
    17,811.16x = 416,381,683.00
  5. Step 5: Solve for x
    x = 416,381,683.00/17,811.16
  6. Step 6: Final answer
    x = 23,377.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.