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Finding the Fourth Proportional to 60,982.77, 91,474.84 and 21,512.21

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Solution

The fourth proportional to 60,982.77, 91,474.84 and 21,512.21 is: 32,268.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,982.77 : 91,474.84 = 21,512.21 : x
  2. Step 2: Convert to fraction form
    60,982.77/91,474.84 = 21,512.21/x
  3. Step 3: Cross multiply
    60,982.77x = 91,474.84 × 21,512.21
  4. Step 4: Simplify right side
    60,982.77x = 1,967,825,855.09
  5. Step 5: Solve for x
    x = 1,967,825,855.09/60,982.77
  6. Step 6: Final answer
    x = 32,268.55

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1.5x scale

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.