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Finding the Fourth Proportional to 11,449.79, 17,173.76 and 3,551.99

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Solution

The fourth proportional to 11,449.79, 17,173.76 and 3,551.99 is: 5,327.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,449.79 : 17,173.76 = 3,551.99 : x
  2. Step 2: Convert to fraction form
    11,449.79/17,173.76 = 3,551.99/x
  3. Step 3: Cross multiply
    11,449.79x = 17,173.76 × 3,551.99
  4. Step 4: Simplify right side
    11,449.79x = 61,000,920.15
  5. Step 5: Solve for x
    x = 61,000,920.15/11,449.79
  6. Step 6: Final answer
    x = 5,327.69

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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.