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Finding the Fourth Proportional to 57,295.80, 85,961.93 and 36,366.21

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Solution

The fourth proportional to 57,295.80, 85,961.93 and 36,366.21 is: 54,560.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,295.80 : 85,961.93 = 36,366.21 : x
  2. Step 2: Convert to fraction form
    57,295.80/85,961.93 = 36,366.21/x
  3. Step 3: Cross multiply
    57,295.80x = 85,961.93 × 36,366.21
  4. Step 4: Simplify right side
    57,295.80x = 3,126,109,598.39
  5. Step 5: Solve for x
    x = 3,126,109,598.39/57,295.80
  6. Step 6: Final answer
    x = 54,560.89

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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.