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Finding the Fourth Proportional to 61,340.70, 84,659.13 and 34,485.42

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Solution

The fourth proportional to 61,340.70, 84,659.13 and 34,485.42 is: 47,594.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,340.70 : 84,659.13 = 34,485.42 : x
  2. Step 2: Convert to fraction form
    61,340.70/84,659.13 = 34,485.42/x
  3. Step 3: Cross multiply
    61,340.70x = 84,659.13 × 34,485.42
  4. Step 4: Simplify right side
    61,340.70x = 2,919,505,654.88
  5. Step 5: Solve for x
    x = 2,919,505,654.88/61,340.70
  6. Step 6: Final answer
    x = 47,594.92

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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.