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Finding the Fourth Proportional to 13,463.88, 18,581.16 and 7,800.15

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Solution

The fourth proportional to 13,463.88, 18,581.16 and 7,800.15 is: 10,764.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,463.88 : 18,581.16 = 7,800.15 : x
  2. Step 2: Convert to fraction form
    13,463.88/18,581.16 = 7,800.15/x
  3. Step 3: Cross multiply
    13,463.88x = 18,581.16 × 7,800.15
  4. Step 4: Simplify right side
    13,463.88x = 144,935,835.17
  5. Step 5: Solve for x
    x = 144,935,835.17/13,463.88
  6. Step 6: Final answer
    x = 10,764.79

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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.