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Finding the Fourth Proportional to 18,264.17, 27,408.56 and 7,169.54

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Solution

The fourth proportional to 18,264.17, 27,408.56 and 7,169.54 is: 10,759.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,264.17 : 27,408.56 = 7,169.54 : x
  2. Step 2: Convert to fraction form
    18,264.17/27,408.56 = 7,169.54/x
  3. Step 3: Cross multiply
    18,264.17x = 27,408.56 × 7,169.54
  4. Step 4: Simplify right side
    18,264.17x = 196,506,799.94
  5. Step 5: Solve for x
    x = 196,506,799.94/18,264.17
  6. Step 6: Final answer
    x = 10,759.14

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1.5x scale

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.