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Finding the Fourth Proportional to 63,488.82, 87,591.98 and 36,638.12

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Solution

The fourth proportional to 63,488.82, 87,591.98 and 36,638.12 is: 50,547.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,488.82 : 87,591.98 = 36,638.12 : x
  2. Step 2: Convert to fraction form
    63,488.82/87,591.98 = 36,638.12/x
  3. Step 3: Cross multiply
    63,488.82x = 87,591.98 × 36,638.12
  4. Step 4: Simplify right side
    63,488.82x = 3,209,205,474.28
  5. Step 5: Solve for x
    x = 3,209,205,474.28/63,488.82
  6. Step 6: Final answer
    x = 50,547.57

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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.