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Finding the Fourth Proportional to 7,469.88, 11,208.02 and 3,090.52

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Solution

The fourth proportional to 7,469.88, 11,208.02 and 3,090.52 is: 4,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,469.88 : 11,208.02 = 3,090.52 : x
  2. Step 2: Convert to fraction form
    7,469.88/11,208.02 = 3,090.52/x
  3. Step 3: Cross multiply
    7,469.88x = 11,208.02 × 3,090.52
  4. Step 4: Simplify right side
    7,469.88x = 34,638,609.97
  5. Step 5: Solve for x
    x = 34,638,609.97/7,469.88
  6. Step 6: Final answer
    x = 4,637.10

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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.