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Finding the Fourth Proportional to 38,854.80, 58,195.80 and 33,670.80

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Solution

The fourth proportional to 38,854.80, 58,195.80 and 33,670.80 is: 50,431.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,854.80 : 58,195.80 = 33,670.80 : x
  2. Step 2: Convert to fraction form
    38,854.80/58,195.80 = 33,670.80/x
  3. Step 3: Cross multiply
    38,854.80x = 58,195.80 × 33,670.80
  4. Step 4: Simplify right side
    38,854.80x = 1,959,499,142.64
  5. Step 5: Solve for x
    x = 1,959,499,142.64/38,854.80
  6. Step 6: Final answer
    x = 50,431.33

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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.