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Finding the Fourth Proportional to 27,921.52, 38,492.04 and 22,206.16

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Solution

The fourth proportional to 27,921.52, 38,492.04 and 22,206.16 is: 30,612.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.52 : 38,492.04 = 22,206.16 : x
  2. Step 2: Convert to fraction form
    27,921.52/38,492.04 = 22,206.16/x
  3. Step 3: Cross multiply
    27,921.52x = 38,492.04 × 22,206.16
  4. Step 4: Simplify right side
    27,921.52x = 854,760,398.97
  5. Step 5: Solve for x
    x = 854,760,398.97/27,921.52
  6. Step 6: Final answer
    x = 30,612.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.