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Finding the Fourth Proportional to 69,081.70, 103,622.55 and 24,709.90

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Solution

The fourth proportional to 69,081.70, 103,622.55 and 24,709.90 is: 37,064.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,081.70 : 103,622.55 = 24,709.90 : x
  2. Step 2: Convert to fraction form
    69,081.70/103,622.55 = 24,709.90/x
  3. Step 3: Cross multiply
    69,081.70x = 103,622.55 × 24,709.90
  4. Step 4: Simplify right side
    69,081.70x = 2,560,502,848.25
  5. Step 5: Solve for x
    x = 2,560,502,848.25/69,081.70
  6. Step 6: Final answer
    x = 37,064.85

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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.