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Finding the Fourth Proportional to 69,758.70, 104,682.57 and 25,381.20

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Solution

The fourth proportional to 69,758.70, 104,682.57 and 25,381.20 is: 38,088.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,758.70 : 104,682.57 = 25,381.20 : x
  2. Step 2: Convert to fraction form
    69,758.70/104,682.57 = 25,381.20/x
  3. Step 3: Cross multiply
    69,758.70x = 104,682.57 × 25,381.20
  4. Step 4: Simplify right side
    69,758.70x = 2,656,969,245.68
  5. Step 5: Solve for x
    x = 2,656,969,245.68/69,758.70
  6. Step 6: Final answer
    x = 38,088.00

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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.