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Finding the Fourth Proportional to 55,170.80, 82,756.20 and 33,009.20

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Solution

The fourth proportional to 55,170.80, 82,756.20 and 33,009.20 is: 49,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,170.80 : 82,756.20 = 33,009.20 : x
  2. Step 2: Convert to fraction form
    55,170.80/82,756.20 = 33,009.20/x
  3. Step 3: Cross multiply
    55,170.80x = 82,756.20 × 33,009.20
  4. Step 4: Simplify right side
    55,170.80x = 2,731,715,957.04
  5. Step 5: Solve for x
    x = 2,731,715,957.04/55,170.80
  6. Step 6: Final answer
    x = 49,513.80

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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.