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Finding the Fourth Proportional to 14,105.88, 19,443.66 and 11,116.92

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Solution

The fourth proportional to 14,105.88, 19,443.66 and 11,116.92 is: 15,323.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.88 : 19,443.66 = 11,116.92 : x
  2. Step 2: Convert to fraction form
    14,105.88/19,443.66 = 11,116.92/x
  3. Step 3: Cross multiply
    14,105.88x = 19,443.66 × 11,116.92
  4. Step 4: Simplify right side
    14,105.88x = 216,153,612.73
  5. Step 5: Solve for x
    x = 216,153,612.73/14,105.88
  6. Step 6: Final answer
    x = 15,323.65

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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.