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Finding the Fourth Proportional to 61,860, 92,839.17 and 22,428.36

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Solution

The fourth proportional to 61,860, 92,839.17 and 22,428.36 is: 33,660.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,860 : 92,839.17 = 22,428.36 : x
  2. Step 2: Convert to fraction form
    61,860/92,839.17 = 22,428.36/x
  3. Step 3: Cross multiply
    61,860x = 92,839.17 × 22,428.36
  4. Step 4: Simplify right side
    61,860x = 2,082,230,326.86
  5. Step 5: Solve for x
    x = 2,082,230,326.86/61,860
  6. Step 6: Final answer
    x = 33,660.37

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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.