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Finding the Fourth Proportional to 18,363.16, 27,502.03 and 17,858.08

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Solution

The fourth proportional to 18,363.16, 27,502.03 and 17,858.08 is: 26,745.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,363.16 : 27,502.03 = 17,858.08 : x
  2. Step 2: Convert to fraction form
    18,363.16/27,502.03 = 17,858.08/x
  3. Step 3: Cross multiply
    18,363.16x = 27,502.03 × 17,858.08
  4. Step 4: Simplify right side
    18,363.16x = 491,133,451.90
  5. Step 5: Solve for x
    x = 491,133,451.90/18,363.16
  6. Step 6: Final answer
    x = 26,745.58

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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.