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Finding the Fourth Proportional to 57,721.84, 79,655.36 and 32,228.60

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Solution

The fourth proportional to 57,721.84, 79,655.36 and 32,228.60 is: 44,475.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,721.84 : 79,655.36 = 32,228.60 : x
  2. Step 2: Convert to fraction form
    57,721.84/79,655.36 = 32,228.60/x
  3. Step 3: Cross multiply
    57,721.84x = 79,655.36 × 32,228.60
  4. Step 4: Simplify right side
    57,721.84x = 2,567,180,296.73
  5. Step 5: Solve for x
    x = 2,567,180,296.73/57,721.84
  6. Step 6: Final answer
    x = 44,475.02

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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.