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Finding the Fourth Proportional to 18,152.28, 27,228.42 and 5,008.44

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Solution

The fourth proportional to 18,152.28, 27,228.42 and 5,008.44 is: 7,512.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,152.28 : 27,228.42 = 5,008.44 : x
  2. Step 2: Convert to fraction form
    18,152.28/27,228.42 = 5,008.44/x
  3. Step 3: Cross multiply
    18,152.28x = 27,228.42 × 5,008.44
  4. Step 4: Simplify right side
    18,152.28x = 136,371,907.86
  5. Step 5: Solve for x
    x = 136,371,907.86/18,152.28
  6. Step 6: Final answer
    x = 7,512.66

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Similar ratio
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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.