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Finding the Fourth Proportional to 17,920.72, 24,727.80 and 9,962.92

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Solution

The fourth proportional to 17,920.72, 24,727.80 and 9,962.92 is: 13,747.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.72 : 24,727.80 = 9,962.92 : x
  2. Step 2: Convert to fraction form
    17,920.72/24,727.80 = 9,962.92/x
  3. Step 3: Cross multiply
    17,920.72x = 24,727.80 × 9,962.92
  4. Step 4: Simplify right side
    17,920.72x = 246,361,093.18
  5. Step 5: Solve for x
    x = 246,361,093.18/17,920.72
  6. Step 6: Final answer
    x = 13,747.28

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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.