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Finding the Fourth Proportional to 7,267.68, 10,891.92 and 2,646.24

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Solution

The fourth proportional to 7,267.68, 10,891.92 and 2,646.24 is: 3,965.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,267.68 : 10,891.92 = 2,646.24 : x
  2. Step 2: Convert to fraction form
    7,267.68/10,891.92 = 2,646.24/x
  3. Step 3: Cross multiply
    7,267.68x = 10,891.92 × 2,646.24
  4. Step 4: Simplify right side
    7,267.68x = 28,822,634.38
  5. Step 5: Solve for x
    x = 28,822,634.38/7,267.68
  6. Step 6: Final answer
    x = 3,965.86

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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.