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Finding the Fourth Proportional to 25,981.86, 38,963.22 and 9,337.44

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Solution

The fourth proportional to 25,981.86, 38,963.22 and 9,337.44 is: 14,002.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,981.86 : 38,963.22 = 9,337.44 : x
  2. Step 2: Convert to fraction form
    25,981.86/38,963.22 = 9,337.44/x
  3. Step 3: Cross multiply
    25,981.86x = 38,963.22 × 9,337.44
  4. Step 4: Simplify right side
    25,981.86x = 363,816,728.96
  5. Step 5: Solve for x
    x = 363,816,728.96/25,981.86
  6. Step 6: Final answer
    x = 14,002.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.