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Finding the Fourth Proportional to 69,195.96, 95,490.42 and 38,981.40

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Solution

The fourth proportional to 69,195.96, 95,490.42 and 38,981.40 is: 53,794.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,195.96 : 95,490.42 = 38,981.40 : x
  2. Step 2: Convert to fraction form
    69,195.96/95,490.42 = 38,981.40/x
  3. Step 3: Cross multiply
    69,195.96x = 95,490.42 × 38,981.40
  4. Step 4: Simplify right side
    69,195.96x = 3,722,350,258.19
  5. Step 5: Solve for x
    x = 3,722,350,258.19/69,195.96
  6. Step 6: Final answer
    x = 53,794.33

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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.