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Finding the Fourth Proportional to 2,607.58, 3,908.63 and 963.08

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Solution

The fourth proportional to 2,607.58, 3,908.63 and 963.08 is: 1,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607.58 : 3,908.63 = 963.08 : x
  2. Step 2: Convert to fraction form
    2,607.58/3,908.63 = 963.08/x
  3. Step 3: Cross multiply
    2,607.58x = 3,908.63 × 963.08
  4. Step 4: Simplify right side
    2,607.58x = 3,764,306.24
  5. Step 5: Solve for x
    x = 3,764,306.24/2,607.58
  6. Step 6: Final answer
    x = 1,443.60

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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.