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Finding the Fourth Proportional to 14,758, 20,366.22 and 8,470.96

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Solution

The fourth proportional to 14,758, 20,366.22 and 8,470.96 is: 11,690.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,758 : 20,366.22 = 8,470.96 : x
  2. Step 2: Convert to fraction form
    14,758/20,366.22 = 8,470.96/x
  3. Step 3: Cross multiply
    14,758x = 20,366.22 × 8,470.96
  4. Step 4: Simplify right side
    14,758x = 172,521,434.97
  5. Step 5: Solve for x
    x = 172,521,434.97/14,758
  6. Step 6: Final answer
    x = 11,690.03

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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.