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Finding the Fourth Proportional to 57,765.06, 79,721.15 and 35,098.83

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Solution

The fourth proportional to 57,765.06, 79,721.15 and 35,098.83 is: 48,439.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,765.06 : 79,721.15 = 35,098.83 : x
  2. Step 2: Convert to fraction form
    57,765.06/79,721.15 = 35,098.83/x
  3. Step 3: Cross multiply
    57,765.06x = 79,721.15 × 35,098.83
  4. Step 4: Simplify right side
    57,765.06x = 2,798,118,915.76
  5. Step 5: Solve for x
    x = 2,798,118,915.76/57,765.06
  6. Step 6: Final answer
    x = 48,439.64

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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.