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Finding the Fourth Proportional to 19,131.40, 26,401.78 and 10,633.88

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Solution

The fourth proportional to 19,131.40, 26,401.78 and 10,633.88 is: 14,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.40 : 26,401.78 = 10,633.88 : x
  2. Step 2: Convert to fraction form
    19,131.40/26,401.78 = 10,633.88/x
  3. Step 3: Cross multiply
    19,131.40x = 26,401.78 × 10,633.88
  4. Step 4: Simplify right side
    19,131.40x = 280,753,175.13
  5. Step 5: Solve for x
    x = 280,753,175.13/19,131.40
  6. Step 6: Final answer
    x = 14,675.00

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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.