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Finding the Fourth Proportional to 61,239.67, 84,504.22 and 34,385.11

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Solution

The fourth proportional to 61,239.67, 84,504.22 and 34,385.11 is: 47,447.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,239.67 : 84,504.22 = 34,385.11 : x
  2. Step 2: Convert to fraction form
    61,239.67/84,504.22 = 34,385.11/x
  3. Step 3: Cross multiply
    61,239.67x = 84,504.22 × 34,385.11
  4. Step 4: Simplify right side
    61,239.67x = 2,905,686,900.16
  5. Step 5: Solve for x
    x = 2,905,686,900.16/61,239.67
  6. Step 6: Final answer
    x = 47,447.79

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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.