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Finding the Fourth Proportional to 17,726.40, 24,471.18 and 12,090.42

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Solution

The fourth proportional to 17,726.40, 24,471.18 and 12,090.42 is: 16,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,726.40 : 24,471.18 = 12,090.42 : x
  2. Step 2: Convert to fraction form
    17,726.40/24,471.18 = 12,090.42/x
  3. Step 3: Cross multiply
    17,726.40x = 24,471.18 × 12,090.42
  4. Step 4: Simplify right side
    17,726.40x = 295,866,844.10
  5. Step 5: Solve for x
    x = 295,866,844.10/17,726.40
  6. Step 6: Final answer
    x = 16,690.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.