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Finding the Fourth Proportional to 57,691, 79,622.22 and 35,347.96

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Solution

The fourth proportional to 57,691, 79,622.22 and 35,347.96 is: 48,785.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,691 : 79,622.22 = 35,347.96 : x
  2. Step 2: Convert to fraction form
    57,691/79,622.22 = 35,347.96/x
  3. Step 3: Cross multiply
    57,691x = 79,622.22 × 35,347.96
  4. Step 4: Simplify right side
    57,691x = 2,814,483,047.67
  5. Step 5: Solve for x
    x = 2,814,483,047.67/57,691
  6. Step 6: Final answer
    x = 48,785.48

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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.