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Finding the Fourth Proportional to 18,387.78, 27,585.81 and 6,701.04

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Solution

The fourth proportional to 18,387.78, 27,585.81 and 6,701.04 is: 10,053.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.78 : 27,585.81 = 6,701.04 : x
  2. Step 2: Convert to fraction form
    18,387.78/27,585.81 = 6,701.04/x
  3. Step 3: Cross multiply
    18,387.78x = 27,585.81 × 6,701.04
  4. Step 4: Simplify right side
    18,387.78x = 184,853,616.24
  5. Step 5: Solve for x
    x = 184,853,616.24/18,387.78
  6. Step 6: Final answer
    x = 10,053.07

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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.