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Finding the Fourth Proportional to 63,891.52, 95,835.84 and 28,806.40

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Solution

The fourth proportional to 63,891.52, 95,835.84 and 28,806.40 is: 43,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,891.52 : 95,835.84 = 28,806.40 : x
  2. Step 2: Convert to fraction form
    63,891.52/95,835.84 = 28,806.40/x
  3. Step 3: Cross multiply
    63,891.52x = 95,835.84 × 28,806.40
  4. Step 4: Simplify right side
    63,891.52x = 2,760,685,541.38
  5. Step 5: Solve for x
    x = 2,760,685,541.38/63,891.52
  6. Step 6: Final answer
    x = 43,208.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.