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Finding the Fourth Proportional to 8,397.48, 11,584.92 and 5,039.20

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Solution

The fourth proportional to 8,397.48, 11,584.92 and 5,039.20 is: 6,951.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,397.48 : 11,584.92 = 5,039.20 : x
  2. Step 2: Convert to fraction form
    8,397.48/11,584.92 = 5,039.20/x
  3. Step 3: Cross multiply
    8,397.48x = 11,584.92 × 5,039.20
  4. Step 4: Simplify right side
    8,397.48x = 58,378,728.86
  5. Step 5: Solve for x
    x = 58,378,728.86/8,397.48
  6. Step 6: Final answer
    x = 6,951.93

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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.