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Finding the Fourth Proportional to 25,415.79, 35,072.84 and 14,661.11

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Solution

The fourth proportional to 25,415.79, 35,072.84 and 14,661.11 is: 20,231.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,415.79 : 35,072.84 = 14,661.11 : x
  2. Step 2: Convert to fraction form
    25,415.79/35,072.84 = 14,661.11/x
  3. Step 3: Cross multiply
    25,415.79x = 35,072.84 × 14,661.11
  4. Step 4: Simplify right side
    25,415.79x = 514,206,889.59
  5. Step 5: Solve for x
    x = 514,206,889.59/25,415.79
  6. Step 6: Final answer
    x = 20,231.79

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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.