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Finding the Fourth Proportional to 6,178.68, 9,261.54 and 2,889

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Solution

The fourth proportional to 6,178.68, 9,261.54 and 2,889 is: 4,330.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,178.68 : 9,261.54 = 2,889 : x
  2. Step 2: Convert to fraction form
    6,178.68/9,261.54 = 2,889/x
  3. Step 3: Cross multiply
    6,178.68x = 9,261.54 × 2,889
  4. Step 4: Simplify right side
    6,178.68x = 26,756,589.06
  5. Step 5: Solve for x
    x = 26,756,589.06/6,178.68
  6. Step 6: Final answer
    x = 4,330.47

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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.