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Finding the Fourth Proportional to 1,766.69, 2,654.17 and 1,666.95

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Solution

The fourth proportional to 1,766.69, 2,654.17 and 1,666.95 is: 2,504.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766.69 : 2,654.17 = 1,666.95 : x
  2. Step 2: Convert to fraction form
    1,766.69/2,654.17 = 1,666.95/x
  3. Step 3: Cross multiply
    1,766.69x = 2,654.17 × 1,666.95
  4. Step 4: Simplify right side
    1,766.69x = 4,424,368.68
  5. Step 5: Solve for x
    x = 4,424,368.68/1,766.69
  6. Step 6: Final answer
    x = 2,504.33

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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.