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Finding the Fourth Proportional to 61,876.80, 92,825.28 and 22,438.08

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Solution

The fourth proportional to 61,876.80, 92,825.28 and 22,438.08 is: 33,660.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,876.80 : 92,825.28 = 22,438.08 : x
  2. Step 2: Convert to fraction form
    61,876.80/92,825.28 = 22,438.08/x
  3. Step 3: Cross multiply
    61,876.80x = 92,825.28 × 22,438.08
  4. Step 4: Simplify right side
    61,876.80x = 2,082,821,058.66
  5. Step 5: Solve for x
    x = 2,082,821,058.66/61,876.80
  6. Step 6: Final answer
    x = 33,660.78

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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.