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Finding the Fourth Proportional to 13,344.51, 18,416.76 and 11,462.31

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Solution

The fourth proportional to 13,344.51, 18,416.76 and 11,462.31 is: 15,819.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.51 : 18,416.76 = 11,462.31 : x
  2. Step 2: Convert to fraction form
    13,344.51/18,416.76 = 11,462.31/x
  3. Step 3: Cross multiply
    13,344.51x = 18,416.76 × 11,462.31
  4. Step 4: Simplify right side
    13,344.51x = 211,098,612.32
  5. Step 5: Solve for x
    x = 211,098,612.32/13,344.51
  6. Step 6: Final answer
    x = 15,819.14

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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.