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Finding the Fourth Proportional to 67,396.74, 101,108.07 and 25,840.50

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Solution

The fourth proportional to 67,396.74, 101,108.07 and 25,840.50 is: 38,765.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,396.74 : 101,108.07 = 25,840.50 : x
  2. Step 2: Convert to fraction form
    67,396.74/101,108.07 = 25,840.50/x
  3. Step 3: Cross multiply
    67,396.74x = 101,108.07 × 25,840.50
  4. Step 4: Simplify right side
    67,396.74x = 2,612,683,082.84
  5. Step 5: Solve for x
    x = 2,612,683,082.84/67,396.74
  6. Step 6: Final answer
    x = 38,765.72

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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.