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Finding the Fourth Proportional to 1,795.94, 2,694.18 and 871.56

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Solution

The fourth proportional to 1,795.94, 2,694.18 and 871.56 is: 1,307.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795.94 : 2,694.18 = 871.56 : x
  2. Step 2: Convert to fraction form
    1,795.94/2,694.18 = 871.56/x
  3. Step 3: Cross multiply
    1,795.94x = 2,694.18 × 871.56
  4. Step 4: Simplify right side
    1,795.94x = 2,348,139.52
  5. Step 5: Solve for x
    x = 2,348,139.52/1,795.94
  6. Step 6: Final answer
    x = 1,307.47

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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.