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Finding the Fourth Proportional to 57,769.41, 79,720.32 and 32,275.97

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Solution

The fourth proportional to 57,769.41, 79,720.32 and 32,275.97 is: 44,540.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,769.41 : 79,720.32 = 32,275.97 : x
  2. Step 2: Convert to fraction form
    57,769.41/79,720.32 = 32,275.97/x
  3. Step 3: Cross multiply
    57,769.41x = 79,720.32 × 32,275.97
  4. Step 4: Simplify right side
    57,769.41x = 2,573,050,258.11
  5. Step 5: Solve for x
    x = 2,573,050,258.11/57,769.41
  6. Step 6: Final answer
    x = 44,540.01

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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.