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Finding the Fourth Proportional to 84,932.89, 127,398.86 and 21,752.89

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Solution

The fourth proportional to 84,932.89, 127,398.86 and 21,752.89 is: 32,629.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,932.89 : 127,398.86 = 21,752.89 : x
  2. Step 2: Convert to fraction form
    84,932.89/127,398.86 = 21,752.89/x
  3. Step 3: Cross multiply
    84,932.89x = 127,398.86 × 21,752.89
  4. Step 4: Simplify right side
    84,932.89x = 2,771,293,042.02
  5. Step 5: Solve for x
    x = 2,771,293,042.02/84,932.89
  6. Step 6: Final answer
    x = 32,629.21

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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.