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Finding the Fourth Proportional to 4,611.51, 6,917.20 and 1,324.59

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Solution

The fourth proportional to 4,611.51, 6,917.20 and 1,324.59 is: 1,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,611.51 : 6,917.20 = 1,324.59 : x
  2. Step 2: Convert to fraction form
    4,611.51/6,917.20 = 1,324.59/x
  3. Step 3: Cross multiply
    4,611.51x = 6,917.20 × 1,324.59
  4. Step 4: Simplify right side
    4,611.51x = 9,162,453.95
  5. Step 5: Solve for x
    x = 9,162,453.95/4,611.51
  6. Step 6: Final answer
    x = 1,986.87

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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.