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Finding the Fourth Proportional to 17,816.56, 26,731.02 and 6,726.44

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Solution

The fourth proportional to 17,816.56, 26,731.02 and 6,726.44 is: 10,091.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,816.56 : 26,731.02 = 6,726.44 : x
  2. Step 2: Convert to fraction form
    17,816.56/26,731.02 = 6,726.44/x
  3. Step 3: Cross multiply
    17,816.56x = 26,731.02 × 6,726.44
  4. Step 4: Simplify right side
    17,816.56x = 179,804,602.17
  5. Step 5: Solve for x
    x = 179,804,602.17/17,816.56
  6. Step 6: Final answer
    x = 10,091.99

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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.