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Finding the Fourth Proportional to 63,643.95, 87,818.89 and 36,781.27

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Solution

The fourth proportional to 63,643.95, 87,818.89 and 36,781.27 is: 50,752.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,643.95 : 87,818.89 = 36,781.27 : x
  2. Step 2: Convert to fraction form
    63,643.95/87,818.89 = 36,781.27/x
  3. Step 3: Cross multiply
    63,643.95x = 87,818.89 × 36,781.27
  4. Step 4: Simplify right side
    63,643.95x = 3,230,090,055.84
  5. Step 5: Solve for x
    x = 3,230,090,055.84/63,643.95
  6. Step 6: Final answer
    x = 50,752.51

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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.