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Finding the Fourth Proportional to 14,863.18, 20,511.18 and 8,575.56

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Solution

The fourth proportional to 14,863.18, 20,511.18 and 8,575.56 is: 11,834.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,863.18 : 20,511.18 = 8,575.56 : x
  2. Step 2: Convert to fraction form
    14,863.18/20,511.18 = 8,575.56/x
  3. Step 3: Cross multiply
    14,863.18x = 20,511.18 × 8,575.56
  4. Step 4: Simplify right side
    14,863.18x = 175,894,854.76
  5. Step 5: Solve for x
    x = 175,894,854.76/14,863.18
  6. Step 6: Final answer
    x = 11,834.27

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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.