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Finding the Fourth Proportional to 18,042.41, 27,068.31 and 7,509.11

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Solution

The fourth proportional to 18,042.41, 27,068.31 and 7,509.11 is: 11,265.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,042.41 : 27,068.31 = 7,509.11 : x
  2. Step 2: Convert to fraction form
    18,042.41/27,068.31 = 7,509.11/x
  3. Step 3: Cross multiply
    18,042.41x = 27,068.31 × 7,509.11
  4. Step 4: Simplify right side
    18,042.41x = 203,258,781.96
  5. Step 5: Solve for x
    x = 203,258,781.96/18,042.41
  6. Step 6: Final answer
    x = 11,265.61

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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.