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Finding the Fourth Proportional to 19,187.52, 26,481.20 and 10,804

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Solution

The fourth proportional to 19,187.52, 26,481.20 and 10,804 is: 14,910.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187.52 : 26,481.20 = 10,804 : x
  2. Step 2: Convert to fraction form
    19,187.52/26,481.20 = 10,804/x
  3. Step 3: Cross multiply
    19,187.52x = 26,481.20 × 10,804
  4. Step 4: Simplify right side
    19,187.52x = 286,102,884.80
  5. Step 5: Solve for x
    x = 286,102,884.80/19,187.52
  6. Step 6: Final answer
    x = 14,910.88

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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.