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Finding the Fourth Proportional to 55,355.40, 82,976.40 and 27,232.20

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Solution

The fourth proportional to 55,355.40, 82,976.40 and 27,232.20 is: 40,820.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,355.40 : 82,976.40 = 27,232.20 : x
  2. Step 2: Convert to fraction form
    55,355.40/82,976.40 = 27,232.20/x
  3. Step 3: Cross multiply
    55,355.40x = 82,976.40 × 27,232.20
  4. Step 4: Simplify right side
    55,355.40x = 2,259,629,920.08
  5. Step 5: Solve for x
    x = 2,259,629,920.08/55,355.40
  6. Step 6: Final answer
    x = 40,820.41

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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.