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Finding the Fourth Proportional to 1,559.68, 2,333.10 and 1,282.66

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Solution

The fourth proportional to 1,559.68, 2,333.10 and 1,282.66 is: 1,918.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559.68 : 2,333.10 = 1,282.66 : x
  2. Step 2: Convert to fraction form
    1,559.68/2,333.10 = 1,282.66/x
  3. Step 3: Cross multiply
    1,559.68x = 2,333.10 × 1,282.66
  4. Step 4: Simplify right side
    1,559.68x = 2,992,574.05
  5. Step 5: Solve for x
    x = 2,992,574.05/1,559.68
  6. Step 6: Final answer
    x = 1,918.71

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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.