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Finding the Fourth Proportional to 22,700.94, 34,040.61 and 7,908.05

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Solution

The fourth proportional to 22,700.94, 34,040.61 and 7,908.05 is: 11,858.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,700.94 : 34,040.61 = 7,908.05 : x
  2. Step 2: Convert to fraction form
    22,700.94/34,040.61 = 7,908.05/x
  3. Step 3: Cross multiply
    22,700.94x = 34,040.61 × 7,908.05
  4. Step 4: Simplify right side
    22,700.94x = 269,194,675.71
  5. Step 5: Solve for x
    x = 269,194,675.71/22,700.94
  6. Step 6: Final answer
    x = 11,858.31

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Why These Related Problems?

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