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Finding the Fourth Proportional to 14,118.66, 19,481.18 and 8,148.15

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Solution

The fourth proportional to 14,118.66, 19,481.18 and 8,148.15 is: 11,242.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.66 : 19,481.18 = 8,148.15 : x
  2. Step 2: Convert to fraction form
    14,118.66/19,481.18 = 8,148.15/x
  3. Step 3: Cross multiply
    14,118.66x = 19,481.18 × 8,148.15
  4. Step 4: Simplify right side
    14,118.66x = 158,735,536.08
  5. Step 5: Solve for x
    x = 158,735,536.08/14,118.66
  6. Step 6: Final answer
    x = 11,242.96

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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.