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Finding the Fourth Proportional to 7,241.98, 10,867.08 and 3,910.19

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Solution

The fourth proportional to 7,241.98, 10,867.08 and 3,910.19 is: 5,867.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,241.98 : 10,867.08 = 3,910.19 : x
  2. Step 2: Convert to fraction form
    7,241.98/10,867.08 = 3,910.19/x
  3. Step 3: Cross multiply
    7,241.98x = 10,867.08 × 3,910.19
  4. Step 4: Simplify right side
    7,241.98x = 42,492,348.62
  5. Step 5: Solve for x
    x = 42,492,348.62/7,241.98
  6. Step 6: Final answer
    x = 5,867.50

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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.