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Finding the Fourth Proportional to 63,988.65, 88,310.67 and 47,827.95

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Solution

The fourth proportional to 63,988.65, 88,310.67 and 47,827.95 is: 66,007.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,988.65 : 88,310.67 = 47,827.95 : x
  2. Step 2: Convert to fraction form
    63,988.65/88,310.67 = 47,827.95/x
  3. Step 3: Cross multiply
    63,988.65x = 88,310.67 × 47,827.95
  4. Step 4: Simplify right side
    63,988.65x = 4,223,718,309.23
  5. Step 5: Solve for x
    x = 4,223,718,309.23/63,988.65
  6. Step 6: Final answer
    x = 66,007.30

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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.