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Finding the Fourth Proportional to 54,855.44, 75,700.56 and 30,982.16

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Solution

The fourth proportional to 54,855.44, 75,700.56 and 30,982.16 is: 42,755.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,855.44 : 75,700.56 = 30,982.16 : x
  2. Step 2: Convert to fraction form
    54,855.44/75,700.56 = 30,982.16/x
  3. Step 3: Cross multiply
    54,855.44x = 75,700.56 × 30,982.16
  4. Step 4: Simplify right side
    54,855.44x = 2,345,366,862.01
  5. Step 5: Solve for x
    x = 2,345,366,862.01/54,855.44
  6. Step 6: Final answer
    x = 42,755.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.