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Finding the Fourth Proportional to 7,797.70, 11,701.67 and 2,867.38

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Solution

The fourth proportional to 7,797.70, 11,701.67 and 2,867.38 is: 4,302.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,797.70 : 11,701.67 = 2,867.38 : x
  2. Step 2: Convert to fraction form
    7,797.70/11,701.67 = 2,867.38/x
  3. Step 3: Cross multiply
    7,797.70x = 11,701.67 × 2,867.38
  4. Step 4: Simplify right side
    7,797.70x = 33,553,134.52
  5. Step 5: Solve for x
    x = 33,553,134.52/7,797.70
  6. Step 6: Final answer
    x = 4,302.95

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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.