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Finding the Fourth Proportional to 57,393.60, 79,202.08 and 31,899.68

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Solution

The fourth proportional to 57,393.60, 79,202.08 and 31,899.68 is: 44,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,393.60 : 79,202.08 = 31,899.68 : x
  2. Step 2: Convert to fraction form
    57,393.60/79,202.08 = 31,899.68/x
  3. Step 3: Cross multiply
    57,393.60x = 79,202.08 × 31,899.68
  4. Step 4: Simplify right side
    57,393.60x = 2,526,521,007.33
  5. Step 5: Solve for x
    x = 2,526,521,007.33/57,393.60
  6. Step 6: Final answer
    x = 44,020.95

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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.