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Finding the Fourth Proportional to 17,988.86, 24,823.72 and 9,923.92

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Solution

The fourth proportional to 17,988.86, 24,823.72 and 9,923.92 is: 13,694.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,988.86 : 24,823.72 = 9,923.92 : x
  2. Step 2: Convert to fraction form
    17,988.86/24,823.72 = 9,923.92/x
  3. Step 3: Cross multiply
    17,988.86x = 24,823.72 × 9,923.92
  4. Step 4: Simplify right side
    17,988.86x = 246,348,611.38
  5. Step 5: Solve for x
    x = 246,348,611.38/17,988.86
  6. Step 6: Final answer
    x = 13,694.51

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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.