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Finding the Fourth Proportional to 7,161.59, 10,741.89 and 2,480.51

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Solution

The fourth proportional to 7,161.59, 10,741.89 and 2,480.51 is: 3,720.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.59 : 10,741.89 = 2,480.51 : x
  2. Step 2: Convert to fraction form
    7,161.59/10,741.89 = 2,480.51/x
  3. Step 3: Cross multiply
    7,161.59x = 10,741.89 × 2,480.51
  4. Step 4: Simplify right side
    7,161.59x = 26,645,365.56
  5. Step 5: Solve for x
    x = 26,645,365.56/7,161.59
  6. Step 6: Final answer
    x = 3,720.59

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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.