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Finding the Fourth Proportional to 2,651.94, 3,658.50 and 1,766.88

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Solution

The fourth proportional to 2,651.94, 3,658.50 and 1,766.88 is: 2,437.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.94 : 3,658.50 = 1,766.88 : x
  2. Step 2: Convert to fraction form
    2,651.94/3,658.50 = 1,766.88/x
  3. Step 3: Cross multiply
    2,651.94x = 3,658.50 × 1,766.88
  4. Step 4: Simplify right side
    2,651.94x = 6,464,130.48
  5. Step 5: Solve for x
    x = 6,464,130.48/2,651.94
  6. Step 6: Final answer
    x = 2,437.51

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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.