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Finding the Fourth Proportional to 61,086.80, 91,601.32 and 23,664.40

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Solution

The fourth proportional to 61,086.80, 91,601.32 and 23,664.40 is: 35,485.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,086.80 : 91,601.32 = 23,664.40 : x
  2. Step 2: Convert to fraction form
    61,086.80/91,601.32 = 23,664.40/x
  3. Step 3: Cross multiply
    61,086.80x = 91,601.32 × 23,664.40
  4. Step 4: Simplify right side
    61,086.80x = 2,167,690,277.01
  5. Step 5: Solve for x
    x = 2,167,690,277.01/61,086.80
  6. Step 6: Final answer
    x = 35,485.41

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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.