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Finding the Fourth Proportional to 69,471.72, 95,869.71 and 39,256.39

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Solution

The fourth proportional to 69,471.72, 95,869.71 and 39,256.39 is: 54,173.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,471.72 : 95,869.71 = 39,256.39 : x
  2. Step 2: Convert to fraction form
    69,471.72/95,869.71 = 39,256.39/x
  3. Step 3: Cross multiply
    69,471.72x = 95,869.71 × 39,256.39
  4. Step 4: Simplify right side
    69,471.72x = 3,763,498,765.17
  5. Step 5: Solve for x
    x = 3,763,498,765.17/69,471.72
  6. Step 6: Final answer
    x = 54,173.11

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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.