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Finding the Fourth Proportional to 2,392.59, 3,591.26 and 1,959

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Solution

The fourth proportional to 2,392.59, 3,591.26 and 1,959 is: 2,940.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.59 : 3,591.26 = 1,959 : x
  2. Step 2: Convert to fraction form
    2,392.59/3,591.26 = 1,959/x
  3. Step 3: Cross multiply
    2,392.59x = 3,591.26 × 1,959
  4. Step 4: Simplify right side
    2,392.59x = 7,035,278.34
  5. Step 5: Solve for x
    x = 7,035,278.34/2,392.59
  6. Step 6: Final answer
    x = 2,940.44

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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.