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Finding the Fourth Proportional to 5,522.55, 7,621.12 and 3,004.66

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Solution

The fourth proportional to 5,522.55, 7,621.12 and 3,004.66 is: 4,146.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,522.55 : 7,621.12 = 3,004.66 : x
  2. Step 2: Convert to fraction form
    5,522.55/7,621.12 = 3,004.66/x
  3. Step 3: Cross multiply
    5,522.55x = 7,621.12 × 3,004.66
  4. Step 4: Simplify right side
    5,522.55x = 22,898,839.70
  5. Step 5: Solve for x
    x = 22,898,839.70/5,522.55
  6. Step 6: Final answer
    x = 4,146.43

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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.