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Finding the Fourth Proportional to 58,535.67, 87,805.96 and 18,553.78

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Solution

The fourth proportional to 58,535.67, 87,805.96 and 18,553.78 is: 27,831.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,535.67 : 87,805.96 = 18,553.78 : x
  2. Step 2: Convert to fraction form
    58,535.67/87,805.96 = 18,553.78/x
  3. Step 3: Cross multiply
    58,535.67x = 87,805.96 × 18,553.78
  4. Step 4: Simplify right side
    58,535.67x = 1,629,132,464.53
  5. Step 5: Solve for x
    x = 1,629,132,464.53/58,535.67
  6. Step 6: Final answer
    x = 27,831.45

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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.