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Finding the Fourth Proportional to 2,674.61, 4,012.19 and 700.55

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Solution

The fourth proportional to 2,674.61, 4,012.19 and 700.55 is: 1,050.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.61 : 4,012.19 = 700.55 : x
  2. Step 2: Convert to fraction form
    2,674.61/4,012.19 = 700.55/x
  3. Step 3: Cross multiply
    2,674.61x = 4,012.19 × 700.55
  4. Step 4: Simplify right side
    2,674.61x = 2,810,716.14
  5. Step 5: Solve for x
    x = 2,810,716.14/2,674.61
  6. Step 6: Final answer
    x = 1,050.89

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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.