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Finding the Fourth Proportional to 19,332.24, 26,672.10 and 13,361.76

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Solution

The fourth proportional to 19,332.24, 26,672.10 and 13,361.76 is: 18,434.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,332.24 : 26,672.10 = 13,361.76 : x
  2. Step 2: Convert to fraction form
    19,332.24/26,672.10 = 13,361.76/x
  3. Step 3: Cross multiply
    19,332.24x = 26,672.10 × 13,361.76
  4. Step 4: Simplify right side
    19,332.24x = 356,386,198.90
  5. Step 5: Solve for x
    x = 356,386,198.90/19,332.24
  6. Step 6: Final answer
    x = 18,434.81

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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.