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Finding the Fourth Proportional to 17,912.76, 24,720.18 and 9,956.52

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Solution

The fourth proportional to 17,912.76, 24,720.18 and 9,956.52 is: 13,740.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,912.76 : 24,720.18 = 9,956.52 : x
  2. Step 2: Convert to fraction form
    17,912.76/24,720.18 = 9,956.52/x
  3. Step 3: Cross multiply
    17,912.76x = 24,720.18 × 9,956.52
  4. Step 4: Simplify right side
    17,912.76x = 246,126,966.57
  5. Step 5: Solve for x
    x = 246,126,966.57/17,912.76
  6. Step 6: Final answer
    x = 13,740.32

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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.