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Finding the Fourth Proportional to 1,766.91, 2,650.10 and 1,064.51

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Solution

The fourth proportional to 1,766.91, 2,650.10 and 1,064.51 is: 1,596.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766.91 : 2,650.10 = 1,064.51 : x
  2. Step 2: Convert to fraction form
    1,766.91/2,650.10 = 1,064.51/x
  3. Step 3: Cross multiply
    1,766.91x = 2,650.10 × 1,064.51
  4. Step 4: Simplify right side
    1,766.91x = 2,821,039.38
  5. Step 5: Solve for x
    x = 2,821,039.38/1,766.91
  6. Step 6: Final answer
    x = 1,596.59

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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.