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Finding the Fourth Proportional to 5,266.05, 7,266.47 and 2,908.05

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Solution

The fourth proportional to 5,266.05, 7,266.47 and 2,908.05 is: 4,012.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266.05 : 7,266.47 = 2,908.05 : x
  2. Step 2: Convert to fraction form
    5,266.05/7,266.47 = 2,908.05/x
  3. Step 3: Cross multiply
    5,266.05x = 7,266.47 × 2,908.05
  4. Step 4: Simplify right side
    5,266.05x = 21,131,258.08
  5. Step 5: Solve for x
    x = 21,131,258.08/5,266.05
  6. Step 6: Final answer
    x = 4,012.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.