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Finding the Fourth Proportional to 57,809.79, 79,771.10 and 32,659.29

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Solution

The fourth proportional to 57,809.79, 79,771.10 and 32,659.29 is: 45,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,809.79 : 79,771.10 = 32,659.29 : x
  2. Step 2: Convert to fraction form
    57,809.79/79,771.10 = 32,659.29/x
  3. Step 3: Cross multiply
    57,809.79x = 79,771.10 × 32,659.29
  4. Step 4: Simplify right side
    57,809.79x = 2,605,267,325.22
  5. Step 5: Solve for x
    x = 2,605,267,325.22/57,809.79
  6. Step 6: Final answer
    x = 45,066.20

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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.