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Finding the Fourth Proportional to 63,513.63, 87,642.50 and 36,664.79

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Solution

The fourth proportional to 63,513.63, 87,642.50 and 36,664.79 is: 50,593.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,513.63 : 87,642.50 = 36,664.79 : x
  2. Step 2: Convert to fraction form
    63,513.63/87,642.50 = 36,664.79/x
  3. Step 3: Cross multiply
    63,513.63x = 87,642.50 × 36,664.79
  4. Step 4: Simplify right side
    63,513.63x = 3,213,393,857.58
  5. Step 5: Solve for x
    x = 3,213,393,857.58/63,513.63
  6. Step 6: Final answer
    x = 50,593.77

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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.