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Finding the Fourth Proportional to 16,651.68, 22,979.36 and 9,577.62

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Solution

The fourth proportional to 16,651.68, 22,979.36 and 9,577.62 is: 13,217.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,651.68 : 22,979.36 = 9,577.62 : x
  2. Step 2: Convert to fraction form
    16,651.68/22,979.36 = 9,577.62/x
  3. Step 3: Cross multiply
    16,651.68x = 22,979.36 × 9,577.62
  4. Step 4: Simplify right side
    16,651.68x = 220,087,577.92
  5. Step 5: Solve for x
    x = 220,087,577.92/16,651.68
  6. Step 6: Final answer
    x = 13,217.14

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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.