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Finding the Fourth Proportional to 18,882.30, 28,324.09 and 5,734.63

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Solution

The fourth proportional to 18,882.30, 28,324.09 and 5,734.63 is: 8,602.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882.30 : 28,324.09 = 5,734.63 : x
  2. Step 2: Convert to fraction form
    18,882.30/28,324.09 = 5,734.63/x
  3. Step 3: Cross multiply
    18,882.30x = 28,324.09 × 5,734.63
  4. Step 4: Simplify right side
    18,882.30x = 162,428,034.62
  5. Step 5: Solve for x
    x = 162,428,034.62/18,882.30
  6. Step 6: Final answer
    x = 8,602.13

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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.