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Finding the Fourth Proportional to 18,569.43, 27,862.65 and 8,042.67

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Solution

The fourth proportional to 18,569.43, 27,862.65 and 8,042.67 is: 12,067.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569.43 : 27,862.65 = 8,042.67 : x
  2. Step 2: Convert to fraction form
    18,569.43/27,862.65 = 8,042.67/x
  3. Step 3: Cross multiply
    18,569.43x = 27,862.65 × 8,042.67
  4. Step 4: Simplify right side
    18,569.43x = 224,090,099.28
  5. Step 5: Solve for x
    x = 224,090,099.28/18,569.43
  6. Step 6: Final answer
    x = 12,067.69

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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.