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Finding the Fourth Proportional to 57,978.03, 79,991.55 and 32,480.97

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Solution

The fourth proportional to 57,978.03, 79,991.55 and 32,480.97 is: 44,813.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,978.03 : 79,991.55 = 32,480.97 : x
  2. Step 2: Convert to fraction form
    57,978.03/79,991.55 = 32,480.97/x
  3. Step 3: Cross multiply
    57,978.03x = 79,991.55 × 32,480.97
  4. Step 4: Simplify right side
    57,978.03x = 2,598,203,135.80
  5. Step 5: Solve for x
    x = 2,598,203,135.80/57,978.03
  6. Step 6: Final answer
    x = 44,813.58

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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.