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Finding the Fourth Proportional to 5,073.78, 7,611.15 and 1,376.03

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Solution

The fourth proportional to 5,073.78, 7,611.15 and 1,376.03 is: 2,064.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,073.78 : 7,611.15 = 1,376.03 : x
  2. Step 2: Convert to fraction form
    5,073.78/7,611.15 = 1,376.03/x
  3. Step 3: Cross multiply
    5,073.78x = 7,611.15 × 1,376.03
  4. Step 4: Simplify right side
    5,073.78x = 10,473,170.73
  5. Step 5: Solve for x
    x = 10,473,170.73/5,073.78
  6. Step 6: Final answer
    x = 2,064.18

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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.