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Finding the Fourth Proportional to 27,636.61, 38,138.20 and 16,306.13

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Solution

The fourth proportional to 27,636.61, 38,138.20 and 16,306.13 is: 22,502.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,636.61 : 38,138.20 = 16,306.13 : x
  2. Step 2: Convert to fraction form
    27,636.61/38,138.20 = 16,306.13/x
  3. Step 3: Cross multiply
    27,636.61x = 38,138.20 × 16,306.13
  4. Step 4: Simplify right side
    27,636.61x = 621,886,447.17
  5. Step 5: Solve for x
    x = 621,886,447.17/27,636.61
  6. Step 6: Final answer
    x = 22,502.27

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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.