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Finding the Fourth Proportional to 61,809.01, 85,298.11 and 34,955.54

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Solution

The fourth proportional to 61,809.01, 85,298.11 and 34,955.54 is: 48,239.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,809.01 : 85,298.11 = 34,955.54 : x
  2. Step 2: Convert to fraction form
    61,809.01/85,298.11 = 34,955.54/x
  3. Step 3: Cross multiply
    61,809.01x = 85,298.11 × 34,955.54
  4. Step 4: Simplify right side
    61,809.01x = 2,981,640,982.15
  5. Step 5: Solve for x
    x = 2,981,640,982.15/61,809.01
  6. Step 6: Final answer
    x = 48,239.59

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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.