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Finding the Fourth Proportional to 63,405.69, 87,498.68 and 36,549.33

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Solution

The fourth proportional to 63,405.69, 87,498.68 and 36,549.33 is: 50,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,405.69 : 87,498.68 = 36,549.33 : x
  2. Step 2: Convert to fraction form
    63,405.69/87,498.68 = 36,549.33/x
  3. Step 3: Cross multiply
    63,405.69x = 87,498.68 × 36,549.33
  4. Step 4: Simplify right side
    63,405.69x = 3,198,017,824.61
  5. Step 5: Solve for x
    x = 3,198,017,824.61/63,405.69
  6. Step 6: Final answer
    x = 50,437.40

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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.