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Finding the Fourth Proportional to 14,086.86, 19,440.17 and 7,713.72

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Solution

The fourth proportional to 14,086.86, 19,440.17 and 7,713.72 is: 10,645.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,086.86 : 19,440.17 = 7,713.72 : x
  2. Step 2: Convert to fraction form
    14,086.86/19,440.17 = 7,713.72/x
  3. Step 3: Cross multiply
    14,086.86x = 19,440.17 × 7,713.72
  4. Step 4: Simplify right side
    14,086.86x = 149,955,989.56
  5. Step 5: Solve for x
    x = 149,955,989.56/14,086.86
  6. Step 6: Final answer
    x = 10,645.10

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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.