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Finding the Fourth Proportional to 63,508.97, 87,642.28 and 36,651.48

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Solution

The fourth proportional to 63,508.97, 87,642.28 and 36,651.48 is: 50,578.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,508.97 : 87,642.28 = 36,651.48 : x
  2. Step 2: Convert to fraction form
    63,508.97/87,642.28 = 36,651.48/x
  3. Step 3: Cross multiply
    63,508.97x = 87,642.28 × 36,651.48
  4. Step 4: Simplify right side
    63,508.97x = 3,212,219,272.57
  5. Step 5: Solve for x
    x = 3,212,219,272.57/63,508.97
  6. Step 6: Final answer
    x = 50,578.99

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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.