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Finding the Fourth Proportional to 63,187.49, 87,198.19 and 34,892.57

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Solution

The fourth proportional to 63,187.49, 87,198.19 and 34,892.57 is: 48,151.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,187.49 : 87,198.19 = 34,892.57 : x
  2. Step 2: Convert to fraction form
    63,187.49/87,198.19 = 34,892.57/x
  3. Step 3: Cross multiply
    63,187.49x = 87,198.19 × 34,892.57
  4. Step 4: Simplify right side
    63,187.49x = 3,042,568,948.45
  5. Step 5: Solve for x
    x = 3,042,568,948.45/63,187.49
  6. Step 6: Final answer
    x = 48,151.44

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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.