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Finding the Fourth Proportional to 63,394.11, 87,503.31 and 36,554.49

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Solution

The fourth proportional to 63,394.11, 87,503.31 and 36,554.49 is: 50,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,394.11 : 87,503.31 = 36,554.49 : x
  2. Step 2: Convert to fraction form
    63,394.11/87,503.31 = 36,554.49/x
  3. Step 3: Cross multiply
    63,394.11x = 87,503.31 × 36,554.49
  4. Step 4: Simplify right side
    63,394.11x = 3,198,638,870.36
  5. Step 5: Solve for x
    x = 3,198,638,870.36/63,394.11
  6. Step 6: Final answer
    x = 50,456.40

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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.