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Finding the Fourth Proportional to 58,228.62, 87,342.12 and 33,215.28

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Solution

The fourth proportional to 58,228.62, 87,342.12 and 33,215.28 is: 49,822.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,228.62 : 87,342.12 = 33,215.28 : x
  2. Step 2: Convert to fraction form
    58,228.62/87,342.12 = 33,215.28/x
  3. Step 3: Cross multiply
    58,228.62x = 87,342.12 × 33,215.28
  4. Step 4: Simplify right side
    58,228.62x = 2,901,092,971.59
  5. Step 5: Solve for x
    x = 2,901,092,971.59/58,228.62
  6. Step 6: Final answer
    x = 49,822.46

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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.