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Finding the Fourth Proportional to 4,749.88, 7,115.10 and 2,796.16

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Solution

The fourth proportional to 4,749.88, 7,115.10 and 2,796.16 is: 4,188.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749.88 : 7,115.10 = 2,796.16 : x
  2. Step 2: Convert to fraction form
    4,749.88/7,115.10 = 2,796.16/x
  3. Step 3: Cross multiply
    4,749.88x = 7,115.10 × 2,796.16
  4. Step 4: Simplify right side
    4,749.88x = 19,894,958.02
  5. Step 5: Solve for x
    x = 19,894,958.02/4,749.88
  6. Step 6: Final answer
    x = 4,188.52

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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.