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Finding the Fourth Proportional to 14,267.92, 19,691.88 and 8,217.04

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Solution

The fourth proportional to 14,267.92, 19,691.88 and 8,217.04 is: 11,340.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,267.92 : 19,691.88 = 8,217.04 : x
  2. Step 2: Convert to fraction form
    14,267.92/19,691.88 = 8,217.04/x
  3. Step 3: Cross multiply
    14,267.92x = 19,691.88 × 8,217.04
  4. Step 4: Simplify right side
    14,267.92x = 161,808,965.64
  5. Step 5: Solve for x
    x = 161,808,965.64/14,267.92
  6. Step 6: Final answer
    x = 11,340.75

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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.