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Finding the Fourth Proportional to 32,462.78, 48,694.20 and 7,838.78

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Solution

The fourth proportional to 32,462.78, 48,694.20 and 7,838.78 is: 11,758.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,462.78 : 48,694.20 = 7,838.78 : x
  2. Step 2: Convert to fraction form
    32,462.78/48,694.20 = 7,838.78/x
  3. Step 3: Cross multiply
    32,462.78x = 48,694.20 × 7,838.78
  4. Step 4: Simplify right side
    32,462.78x = 381,703,121.08
  5. Step 5: Solve for x
    x = 381,703,121.08/32,462.78
  6. Step 6: Final answer
    x = 11,758.18

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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.