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Finding the Fourth Proportional to 9,241.97, 13,860.90 and 2,666.70

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Solution

The fourth proportional to 9,241.97, 13,860.90 and 2,666.70 is: 3,999.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,241.97 : 13,860.90 = 2,666.70 : x
  2. Step 2: Convert to fraction form
    9,241.97/13,860.90 = 2,666.70/x
  3. Step 3: Cross multiply
    9,241.97x = 13,860.90 × 2,666.70
  4. Step 4: Simplify right side
    9,241.97x = 36,962,862.03
  5. Step 5: Solve for x
    x = 36,962,862.03/9,241.97
  6. Step 6: Final answer
    x = 3,999.46

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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.