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Finding the Fourth Proportional to 19,908.59, 29,881.36 and 10,054.78

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Solution

The fourth proportional to 19,908.59, 29,881.36 and 10,054.78 is: 15,091.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,908.59 : 29,881.36 = 10,054.78 : x
  2. Step 2: Convert to fraction form
    19,908.59/29,881.36 = 10,054.78/x
  3. Step 3: Cross multiply
    19,908.59x = 29,881.36 × 10,054.78
  4. Step 4: Simplify right side
    19,908.59x = 300,450,550.29
  5. Step 5: Solve for x
    x = 300,450,550.29/19,908.59
  6. Step 6: Final answer
    x = 15,091.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.