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Finding the Fourth Proportional to 58,224.88, 87,337.86 and 20,786.68

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Solution

The fourth proportional to 58,224.88, 87,337.86 and 20,786.68 is: 31,180.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,224.88 : 87,337.86 = 20,786.68 : x
  2. Step 2: Convert to fraction form
    58,224.88/87,337.86 = 20,786.68/x
  3. Step 3: Cross multiply
    58,224.88x = 87,337.86 × 20,786.68
  4. Step 4: Simplify right side
    58,224.88x = 1,815,464,147.70
  5. Step 5: Solve for x
    x = 1,815,464,147.70/58,224.88
  6. Step 6: Final answer
    x = 31,180.21

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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.