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Finding the Fourth Proportional to 18,180.42, 27,241.28 and 15,264.42

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Solution

The fourth proportional to 18,180.42, 27,241.28 and 15,264.42 is: 22,871.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.42 : 27,241.28 = 15,264.42 : x
  2. Step 2: Convert to fraction form
    18,180.42/27,241.28 = 15,264.42/x
  3. Step 3: Cross multiply
    18,180.42x = 27,241.28 × 15,264.42
  4. Step 4: Simplify right side
    18,180.42x = 415,822,339.26
  5. Step 5: Solve for x
    x = 415,822,339.26/18,180.42
  6. Step 6: Final answer
    x = 22,871.99

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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.