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Finding the Fourth Proportional to 14,183.76, 19,573.32 and 7,896

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Solution

The fourth proportional to 14,183.76, 19,573.32 and 7,896 is: 10,896.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,183.76 : 19,573.32 = 7,896 : x
  2. Step 2: Convert to fraction form
    14,183.76/19,573.32 = 7,896/x
  3. Step 3: Cross multiply
    14,183.76x = 19,573.32 × 7,896
  4. Step 4: Simplify right side
    14,183.76x = 154,550,934.72
  5. Step 5: Solve for x
    x = 154,550,934.72/14,183.76
  6. Step 6: Final answer
    x = 10,896.33

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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.