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Finding the Fourth Proportional to 5,461.62, 7,536.78 and 3,103.88

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Solution

The fourth proportional to 5,461.62, 7,536.78 and 3,103.88 is: 4,283.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,461.62 : 7,536.78 = 3,103.88 : x
  2. Step 2: Convert to fraction form
    5,461.62/7,536.78 = 3,103.88/x
  3. Step 3: Cross multiply
    5,461.62x = 7,536.78 × 3,103.88
  4. Step 4: Simplify right side
    5,461.62x = 23,393,260.71
  5. Step 5: Solve for x
    x = 23,393,260.71/5,461.62
  6. Step 6: Final answer
    x = 4,283.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.