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Finding the Fourth Proportional to 2,555.97, 3,833.51 and 706.64

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Solution

The fourth proportional to 2,555.97, 3,833.51 and 706.64 is: 1,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.97 : 3,833.51 = 706.64 : x
  2. Step 2: Convert to fraction form
    2,555.97/3,833.51 = 706.64/x
  3. Step 3: Cross multiply
    2,555.97x = 3,833.51 × 706.64
  4. Step 4: Simplify right side
    2,555.97x = 2,708,888.81
  5. Step 5: Solve for x
    x = 2,708,888.81/2,555.97
  6. Step 6: Final answer
    x = 1,059.83

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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.