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Finding the Fourth Proportional to 61,667.42, 85,104.87 and 34,800.13

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Solution

The fourth proportional to 61,667.42, 85,104.87 and 34,800.13 is: 48,026.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,667.42 : 85,104.87 = 34,800.13 : x
  2. Step 2: Convert to fraction form
    61,667.42/85,104.87 = 34,800.13/x
  3. Step 3: Cross multiply
    61,667.42x = 85,104.87 × 34,800.13
  4. Step 4: Simplify right side
    61,667.42x = 2,961,660,114.11
  5. Step 5: Solve for x
    x = 2,961,660,114.11/61,667.42
  6. Step 6: Final answer
    x = 48,026.33

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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.