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Finding the Fourth Proportional to 63,505.88, 87,637.38 and 36,647.81

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Solution

The fourth proportional to 63,505.88, 87,637.38 and 36,647.81 is: 50,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,505.88 : 87,637.38 = 36,647.81 : x
  2. Step 2: Convert to fraction form
    63,505.88/87,637.38 = 36,647.81/x
  3. Step 3: Cross multiply
    63,505.88x = 87,637.38 × 36,647.81
  4. Step 4: Simplify right side
    63,505.88x = 3,211,717,612.95
  5. Step 5: Solve for x
    x = 3,211,717,612.95/63,505.88
  6. Step 6: Final answer
    x = 50,573.55

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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.