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Finding the Fourth Proportional to 1,766.59, 2,651.10 and 1,403.71

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Solution

The fourth proportional to 1,766.59, 2,651.10 and 1,403.71 is: 2,106.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766.59 : 2,651.10 = 1,403.71 : x
  2. Step 2: Convert to fraction form
    1,766.59/2,651.10 = 1,403.71/x
  3. Step 3: Cross multiply
    1,766.59x = 2,651.10 × 1,403.71
  4. Step 4: Simplify right side
    1,766.59x = 3,721,375.58
  5. Step 5: Solve for x
    x = 3,721,375.58/1,766.59
  6. Step 6: Final answer
    x = 2,106.53

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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.