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Finding the Fourth Proportional to 17,910.72, 24,718.32 and 9,954.24

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Solution

The fourth proportional to 17,910.72, 24,718.32 and 9,954.24 is: 13,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,910.72 : 24,718.32 = 9,954.24 : x
  2. Step 2: Convert to fraction form
    17,910.72/24,718.32 = 9,954.24/x
  3. Step 3: Cross multiply
    17,910.72x = 24,718.32 × 9,954.24
  4. Step 4: Simplify right side
    17,910.72x = 246,052,089.68
  5. Step 5: Solve for x
    x = 246,052,089.68/17,910.72
  6. Step 6: Final answer
    x = 13,737.70

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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.