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Finding the Fourth Proportional to 2,674.68, 4,011 and 1,071.35

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Solution

The fourth proportional to 2,674.68, 4,011 and 1,071.35 is: 1,606.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.68 : 4,011 = 1,071.35 : x
  2. Step 2: Convert to fraction form
    2,674.68/4,011 = 1,071.35/x
  3. Step 3: Cross multiply
    2,674.68x = 4,011 × 1,071.35
  4. Step 4: Simplify right side
    2,674.68x = 4,297,184.85
  5. Step 5: Solve for x
    x = 4,297,184.85/2,674.68
  6. Step 6: Final answer
    x = 1,606.62

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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.