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Finding the Fourth Proportional to 27,616.17, 38,110.40 and 15,040.92

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Solution

The fourth proportional to 27,616.17, 38,110.40 and 15,040.92 is: 20,756.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,616.17 : 38,110.40 = 15,040.92 : x
  2. Step 2: Convert to fraction form
    27,616.17/38,110.40 = 15,040.92/x
  3. Step 3: Cross multiply
    27,616.17x = 38,110.40 × 15,040.92
  4. Step 4: Simplify right side
    27,616.17x = 573,215,402.36
  5. Step 5: Solve for x
    x = 573,215,402.36/27,616.17
  6. Step 6: Final answer
    x = 20,756.51

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1.5x scale

Why These Related Problems?

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