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Finding the Fourth Proportional to 7,937.68, 11,906.52 and 3,323.92

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Solution

The fourth proportional to 7,937.68, 11,906.52 and 3,323.92 is: 4,985.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.68 : 11,906.52 = 3,323.92 : x
  2. Step 2: Convert to fraction form
    7,937.68/11,906.52 = 3,323.92/x
  3. Step 3: Cross multiply
    7,937.68x = 11,906.52 × 3,323.92
  4. Step 4: Simplify right side
    7,937.68x = 39,576,319.96
  5. Step 5: Solve for x
    x = 39,576,319.96/7,937.68
  6. Step 6: Final answer
    x = 4,985.88

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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.