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Finding the Fourth Proportional to 69,167.18, 95,455.80 and 38,955.80

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Solution

The fourth proportional to 69,167.18, 95,455.80 and 38,955.80 is: 53,761.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,167.18 : 95,455.80 = 38,955.80 : x
  2. Step 2: Convert to fraction form
    69,167.18/95,455.80 = 38,955.80/x
  3. Step 3: Cross multiply
    69,167.18x = 95,455.80 × 38,955.80
  4. Step 4: Simplify right side
    69,167.18x = 3,718,557,053.64
  5. Step 5: Solve for x
    x = 3,718,557,053.64/69,167.18
  6. Step 6: Final answer
    x = 53,761.87

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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.