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Finding the Fourth Proportional to 5,167.44, 7,119.99 and 4,742.79

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Solution

The fourth proportional to 5,167.44, 7,119.99 and 4,742.79 is: 6,534.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.44 : 7,119.99 = 4,742.79 : x
  2. Step 2: Convert to fraction form
    5,167.44/7,119.99 = 4,742.79/x
  3. Step 3: Cross multiply
    5,167.44x = 7,119.99 × 4,742.79
  4. Step 4: Simplify right side
    5,167.44x = 33,768,617.37
  5. Step 5: Solve for x
    x = 33,768,617.37/5,167.44
  6. Step 6: Final answer
    x = 6,534.88

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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.