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Finding the Fourth Proportional to 6,561.56, 9,055.78 and 3,767

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Solution

The fourth proportional to 6,561.56, 9,055.78 and 3,767 is: 5,198.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,561.56 : 9,055.78 = 3,767 : x
  2. Step 2: Convert to fraction form
    6,561.56/9,055.78 = 3,767/x
  3. Step 3: Cross multiply
    6,561.56x = 9,055.78 × 3,767
  4. Step 4: Simplify right side
    6,561.56x = 34,113,123.26
  5. Step 5: Solve for x
    x = 34,113,123.26/6,561.56
  6. Step 6: Final answer
    x = 5,198.93

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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.