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Finding the Fourth Proportional to 18,012.71, 27,023.27 and 6,166.61

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Solution

The fourth proportional to 18,012.71, 27,023.27 and 6,166.61 is: 9,251.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,012.71 : 27,023.27 = 6,166.61 : x
  2. Step 2: Convert to fraction form
    18,012.71/27,023.27 = 6,166.61/x
  3. Step 3: Cross multiply
    18,012.71x = 27,023.27 × 6,166.61
  4. Step 4: Simplify right side
    18,012.71x = 166,641,801.07
  5. Step 5: Solve for x
    x = 166,641,801.07/18,012.71
  6. Step 6: Final answer
    x = 9,251.35

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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.