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Finding the Fourth Proportional to 84,679.11, 127,008.90 and 22,354.47

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Solution

The fourth proportional to 84,679.11, 127,008.90 and 22,354.47 is: 33,529.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,679.11 : 127,008.90 = 22,354.47 : x
  2. Step 2: Convert to fraction form
    84,679.11/127,008.90 = 22,354.47/x
  3. Step 3: Cross multiply
    84,679.11x = 127,008.90 × 22,354.47
  4. Step 4: Simplify right side
    84,679.11x = 2,839,216,644.78
  5. Step 5: Solve for x
    x = 2,839,216,644.78/84,679.11
  6. Step 6: Final answer
    x = 33,529.13

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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.