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Finding the Fourth Proportional to 7,369.20, 11,042.52 and 3,205.20

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Solution

The fourth proportional to 7,369.20, 11,042.52 and 3,205.20 is: 4,802.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,369.20 : 11,042.52 = 3,205.20 : x
  2. Step 2: Convert to fraction form
    7,369.20/11,042.52 = 3,205.20/x
  3. Step 3: Cross multiply
    7,369.20x = 11,042.52 × 3,205.20
  4. Step 4: Simplify right side
    7,369.20x = 35,393,485.10
  5. Step 5: Solve for x
    x = 35,393,485.10/7,369.20
  6. Step 6: Final answer
    x = 4,802.89

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1.5x scale

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.