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Finding the Fourth Proportional to 2,555.62, 3,833.40 and 706.75

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Solution

The fourth proportional to 2,555.62, 3,833.40 and 706.75 is: 1,060.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.62 : 3,833.40 = 706.75 : x
  2. Step 2: Convert to fraction form
    2,555.62/3,833.40 = 706.75/x
  3. Step 3: Cross multiply
    2,555.62x = 3,833.40 × 706.75
  4. Step 4: Simplify right side
    2,555.62x = 2,709,255.45
  5. Step 5: Solve for x
    x = 2,709,255.45/2,555.62
  6. Step 6: Final answer
    x = 1,060.12

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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.