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Finding the Fourth Proportional to 57,776.60, 79,731.82 and 35,109.56

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Solution

The fourth proportional to 57,776.60, 79,731.82 and 35,109.56 is: 48,451.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,776.60 : 79,731.82 = 35,109.56 : x
  2. Step 2: Convert to fraction form
    57,776.60/79,731.82 = 35,109.56/x
  3. Step 3: Cross multiply
    57,776.60x = 79,731.82 × 35,109.56
  4. Step 4: Simplify right side
    57,776.60x = 2,799,349,118.20
  5. Step 5: Solve for x
    x = 2,799,349,118.20/57,776.60
  6. Step 6: Final answer
    x = 48,451.26

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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.