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Finding the Fourth Proportional to 7,498.58, 11,241.79 and 3,119.31

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Solution

The fourth proportional to 7,498.58, 11,241.79 and 3,119.31 is: 4,676.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,498.58 : 11,241.79 = 3,119.31 : x
  2. Step 2: Convert to fraction form
    7,498.58/11,241.79 = 3,119.31/x
  3. Step 3: Cross multiply
    7,498.58x = 11,241.79 × 3,119.31
  4. Step 4: Simplify right side
    7,498.58x = 35,066,620.17
  5. Step 5: Solve for x
    x = 35,066,620.17/7,498.58
  6. Step 6: Final answer
    x = 4,676.44

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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.