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Finding the Fourth Proportional to 61,129.84, 91,675.32 and 23,687.32

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Solution

The fourth proportional to 61,129.84, 91,675.32 and 23,687.32 is: 35,523.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,129.84 : 91,675.32 = 23,687.32 : x
  2. Step 2: Convert to fraction form
    61,129.84/91,675.32 = 23,687.32/x
  3. Step 3: Cross multiply
    61,129.84x = 91,675.32 × 23,687.32
  4. Step 4: Simplify right side
    61,129.84x = 2,171,542,640.94
  5. Step 5: Solve for x
    x = 2,171,542,640.94/61,129.84
  6. Step 6: Final answer
    x = 35,523.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.