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Finding the Fourth Proportional to 18,542.55, 27,813.53 and 4,502.70

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Solution

The fourth proportional to 18,542.55, 27,813.53 and 4,502.70 is: 6,753.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,542.55 : 27,813.53 = 4,502.70 : x
  2. Step 2: Convert to fraction form
    18,542.55/27,813.53 = 4,502.70/x
  3. Step 3: Cross multiply
    18,542.55x = 27,813.53 × 4,502.70
  4. Step 4: Simplify right side
    18,542.55x = 125,235,992.79
  5. Step 5: Solve for x
    x = 125,235,992.79/18,542.55
  6. Step 6: Final answer
    x = 6,753.98

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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.