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Finding the Fourth Proportional to 60,986.40, 91,436.40 and 27,722.40

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Solution

The fourth proportional to 60,986.40, 91,436.40 and 27,722.40 is: 41,563.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,986.40 : 91,436.40 = 27,722.40 : x
  2. Step 2: Convert to fraction form
    60,986.40/91,436.40 = 27,722.40/x
  3. Step 3: Cross multiply
    60,986.40x = 91,436.40 × 27,722.40
  4. Step 4: Simplify right side
    60,986.40x = 2,534,836,455.36
  5. Step 5: Solve for x
    x = 2,534,836,455.36/60,986.40
  6. Step 6: Final answer
    x = 41,563.96

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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.