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Finding the Fourth Proportional to 51,964.88, 77,912.42 and 26,679.71

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Solution

The fourth proportional to 51,964.88, 77,912.42 and 26,679.71 is: 40,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,964.88 : 77,912.42 = 26,679.71 : x
  2. Step 2: Convert to fraction form
    51,964.88/77,912.42 = 26,679.71/x
  3. Step 3: Cross multiply
    51,964.88x = 77,912.42 × 26,679.71
  4. Step 4: Simplify right side
    51,964.88x = 2,078,680,832.38
  5. Step 5: Solve for x
    x = 2,078,680,832.38/51,964.88
  6. Step 6: Final answer
    x = 40,001.65

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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.