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Finding the Fourth Proportional to 84,789.50, 127,186.68 and 22,460

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Solution

The fourth proportional to 84,789.50, 127,186.68 and 22,460 is: 33,690.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,789.50 : 127,186.68 = 22,460 : x
  2. Step 2: Convert to fraction form
    84,789.50/127,186.68 = 22,460/x
  3. Step 3: Cross multiply
    84,789.50x = 127,186.68 × 22,460
  4. Step 4: Simplify right side
    84,789.50x = 2,856,612,832.80
  5. Step 5: Solve for x
    x = 2,856,612,832.80/84,789.50
  6. Step 6: Final answer
    x = 33,690.64

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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.