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Finding the Fourth Proportional to 62,221.76, 85,867.80 and 33,929

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Solution

The fourth proportional to 62,221.76, 85,867.80 and 33,929 is: 46,822.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,221.76 : 85,867.80 = 33,929 : x
  2. Step 2: Convert to fraction form
    62,221.76/85,867.80 = 33,929/x
  3. Step 3: Cross multiply
    62,221.76x = 85,867.80 × 33,929
  4. Step 4: Simplify right side
    62,221.76x = 2,913,408,586.20
  5. Step 5: Solve for x
    x = 2,913,408,586.20/62,221.76
  6. Step 6: Final answer
    x = 46,822.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.