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Finding the Fourth Proportional to 16,468.68, 22,728.06 and 9,397.20

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Solution

The fourth proportional to 16,468.68, 22,728.06 and 9,397.20 is: 12,968.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,468.68 : 22,728.06 = 9,397.20 : x
  2. Step 2: Convert to fraction form
    16,468.68/22,728.06 = 9,397.20/x
  3. Step 3: Cross multiply
    16,468.68x = 22,728.06 × 9,397.20
  4. Step 4: Simplify right side
    16,468.68x = 213,580,125.43
  5. Step 5: Solve for x
    x = 213,580,125.43/16,468.68
  6. Step 6: Final answer
    x = 12,968.87

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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.