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Finding the Fourth Proportional to 18,017.40, 24,863.88 and 9,951.57

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Solution

The fourth proportional to 18,017.40, 24,863.88 and 9,951.57 is: 13,733.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,017.40 : 24,863.88 = 9,951.57 : x
  2. Step 2: Convert to fraction form
    18,017.40/24,863.88 = 9,951.57/x
  3. Step 3: Cross multiply
    18,017.40x = 24,863.88 × 9,951.57
  4. Step 4: Simplify right side
    18,017.40x = 247,434,642.29
  5. Step 5: Solve for x
    x = 247,434,642.29/18,017.40
  6. Step 6: Final answer
    x = 13,733.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.