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Finding the Fourth Proportional to 31,163.60, 46,747.84 and 15,377.10

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Solution

The fourth proportional to 31,163.60, 46,747.84 and 15,377.10 is: 23,066.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,163.60 : 46,747.84 = 15,377.10 : x
  2. Step 2: Convert to fraction form
    31,163.60/46,747.84 = 15,377.10/x
  3. Step 3: Cross multiply
    31,163.60x = 46,747.84 × 15,377.10
  4. Step 4: Simplify right side
    31,163.60x = 718,846,210.46
  5. Step 5: Solve for x
    x = 718,846,210.46/31,163.60
  6. Step 6: Final answer
    x = 23,066.85

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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.