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Finding the Fourth Proportional to 63,713.79, 87,935.90 and 36,872.64

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Solution

The fourth proportional to 63,713.79, 87,935.90 and 36,872.64 is: 50,890.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,713.79 : 87,935.90 = 36,872.64 : x
  2. Step 2: Convert to fraction form
    63,713.79/87,935.90 = 36,872.64/x
  3. Step 3: Cross multiply
    63,713.79x = 87,935.90 × 36,872.64
  4. Step 4: Simplify right side
    63,713.79x = 3,242,428,599.41
  5. Step 5: Solve for x
    x = 3,242,428,599.41/63,713.79
  6. Step 6: Final answer
    x = 50,890.53

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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.