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Finding the Fourth Proportional to 63,418.36, 87,517.98 and 38,263

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Solution

The fourth proportional to 63,418.36, 87,517.98 and 38,263 is: 52,803.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,418.36 : 87,517.98 = 38,263 : x
  2. Step 2: Convert to fraction form
    63,418.36/87,517.98 = 38,263/x
  3. Step 3: Cross multiply
    63,418.36x = 87,517.98 × 38,263
  4. Step 4: Simplify right side
    63,418.36x = 3,348,700,468.74
  5. Step 5: Solve for x
    x = 3,348,700,468.74/63,418.36
  6. Step 6: Final answer
    x = 52,803.33

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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.