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Finding the Fourth Proportional to 1,866.58, 2,574.81 and 1,166.74

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Solution

The fourth proportional to 1,866.58, 2,574.81 and 1,166.74 is: 1,609.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866.58 : 2,574.81 = 1,166.74 : x
  2. Step 2: Convert to fraction form
    1,866.58/2,574.81 = 1,166.74/x
  3. Step 3: Cross multiply
    1,866.58x = 2,574.81 × 1,166.74
  4. Step 4: Simplify right side
    1,866.58x = 3,004,133.82
  5. Step 5: Solve for x
    x = 3,004,133.82/1,866.58
  6. Step 6: Final answer
    x = 1,609.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.