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Finding the Fourth Proportional to 57,965.72, 79,995.70 and 32,470.60

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Solution

The fourth proportional to 57,965.72, 79,995.70 and 32,470.60 is: 44,811.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,965.72 : 79,995.70 = 32,470.60 : x
  2. Step 2: Convert to fraction form
    57,965.72/79,995.70 = 32,470.60/x
  3. Step 3: Cross multiply
    57,965.72x = 79,995.70 × 32,470.60
  4. Step 4: Simplify right side
    57,965.72x = 2,597,508,376.42
  5. Step 5: Solve for x
    x = 2,597,508,376.42/57,965.72
  6. Step 6: Final answer
    x = 44,811.11

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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.