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Finding the Fourth Proportional to 17,690.01, 26,491.20 and 10,271.97

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Solution

The fourth proportional to 17,690.01, 26,491.20 and 10,271.97 is: 15,382.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,690.01 : 26,491.20 = 10,271.97 : x
  2. Step 2: Convert to fraction form
    17,690.01/26,491.20 = 10,271.97/x
  3. Step 3: Cross multiply
    17,690.01x = 26,491.20 × 10,271.97
  4. Step 4: Simplify right side
    17,690.01x = 272,116,811.66
  5. Step 5: Solve for x
    x = 272,116,811.66/17,690.01
  6. Step 6: Final answer
    x = 15,382.51

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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.