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Finding the Fourth Proportional to 75,299.33, 112,949.39 and 25,379.87

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Solution

The fourth proportional to 75,299.33, 112,949.39 and 25,379.87 is: 38,069.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,299.33 : 112,949.39 = 25,379.87 : x
  2. Step 2: Convert to fraction form
    75,299.33/112,949.39 = 25,379.87/x
  3. Step 3: Cross multiply
    75,299.33x = 112,949.39 × 25,379.87
  4. Step 4: Simplify right side
    75,299.33x = 2,866,640,270.03
  5. Step 5: Solve for x
    x = 2,866,640,270.03/75,299.33
  6. Step 6: Final answer
    x = 38,069.93

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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.