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Finding the Fourth Proportional to 18,456.66, 27,677.43 and 6,767.01

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Solution

The fourth proportional to 18,456.66, 27,677.43 and 6,767.01 is: 10,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.66 : 27,677.43 = 6,767.01 : x
  2. Step 2: Convert to fraction form
    18,456.66/27,677.43 = 6,767.01/x
  3. Step 3: Cross multiply
    18,456.66x = 27,677.43 × 6,767.01
  4. Step 4: Simplify right side
    18,456.66x = 187,293,445.58
  5. Step 5: Solve for x
    x = 187,293,445.58/18,456.66
  6. Step 6: Final answer
    x = 10,147.74

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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.