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Finding the Fourth Proportional to 61,649.10, 85,078.55 and 34,793.96

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Solution

The fourth proportional to 61,649.10, 85,078.55 and 34,793.96 is: 48,017.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,649.10 : 85,078.55 = 34,793.96 : x
  2. Step 2: Convert to fraction form
    61,649.10/85,078.55 = 34,793.96/x
  3. Step 3: Cross multiply
    61,649.10x = 85,078.55 × 34,793.96
  4. Step 4: Simplify right side
    61,649.10x = 2,960,219,327.15
  5. Step 5: Solve for x
    x = 2,960,219,327.15/61,649.10
  6. Step 6: Final answer
    x = 48,017.24

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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.