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Finding the Fourth Proportional to 2,932.21, 4,398.51 and 984.56

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Solution

The fourth proportional to 2,932.21, 4,398.51 and 984.56 is: 1,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,932.21 : 4,398.51 = 984.56 : x
  2. Step 2: Convert to fraction form
    2,932.21/4,398.51 = 984.56/x
  3. Step 3: Cross multiply
    2,932.21x = 4,398.51 × 984.56
  4. Step 4: Simplify right side
    2,932.21x = 4,330,611.69
  5. Step 5: Solve for x
    x = 4,330,611.69/2,932.21
  6. Step 6: Final answer
    x = 1,476.91

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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.