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Finding the Fourth Proportional to 27,692.92, 38,216.28 and 15,117.76

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Solution

The fourth proportional to 27,692.92, 38,216.28 and 15,117.76 is: 20,862.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,692.92 : 38,216.28 = 15,117.76 : x
  2. Step 2: Convert to fraction form
    27,692.92/38,216.28 = 15,117.76/x
  3. Step 3: Cross multiply
    27,692.92x = 38,216.28 × 15,117.76
  4. Step 4: Simplify right side
    27,692.92x = 577,744,549.13
  5. Step 5: Solve for x
    x = 577,744,549.13/27,692.92
  6. Step 6: Final answer
    x = 20,862.54

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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.