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Finding the Fourth Proportional to 63,002.51, 86,943.39 and 36,143.85

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Solution

The fourth proportional to 63,002.51, 86,943.39 and 36,143.85 is: 49,878.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,002.51 : 86,943.39 = 36,143.85 : x
  2. Step 2: Convert to fraction form
    63,002.51/86,943.39 = 36,143.85/x
  3. Step 3: Cross multiply
    63,002.51x = 86,943.39 × 36,143.85
  4. Step 4: Simplify right side
    63,002.51x = 3,142,468,846.65
  5. Step 5: Solve for x
    x = 3,142,468,846.65/63,002.51
  6. Step 6: Final answer
    x = 49,878.47

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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.