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Finding the Fourth Proportional to 61,912.67, 85,422.13 and 35,054.58

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Solution

The fourth proportional to 61,912.67, 85,422.13 and 35,054.58 is: 48,365.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,912.67 : 85,422.13 = 35,054.58 : x
  2. Step 2: Convert to fraction form
    61,912.67/85,422.13 = 35,054.58/x
  3. Step 3: Cross multiply
    61,912.67x = 85,422.13 × 35,054.58
  4. Step 4: Simplify right side
    61,912.67x = 2,994,437,122.55
  5. Step 5: Solve for x
    x = 2,994,437,122.55/61,912.67
  6. Step 6: Final answer
    x = 48,365.50

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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.