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Finding the Fourth Proportional to 18,451.10, 27,672.15 and 5,302.10

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Solution

The fourth proportional to 18,451.10, 27,672.15 and 5,302.10 is: 7,951.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,451.10 : 27,672.15 = 5,302.10 : x
  2. Step 2: Convert to fraction form
    18,451.10/27,672.15 = 5,302.10/x
  3. Step 3: Cross multiply
    18,451.10x = 27,672.15 × 5,302.10
  4. Step 4: Simplify right side
    18,451.10x = 146,720,506.52
  5. Step 5: Solve for x
    x = 146,720,506.52/18,451.10
  6. Step 6: Final answer
    x = 7,951.86

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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.