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Finding the Fourth Proportional to 2,076.25, 3,114.38 and 965.06

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Solution

The fourth proportional to 2,076.25, 3,114.38 and 965.06 is: 1,447.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.25 : 3,114.38 = 965.06 : x
  2. Step 2: Convert to fraction form
    2,076.25/3,114.38 = 965.06/x
  3. Step 3: Cross multiply
    2,076.25x = 3,114.38 × 965.06
  4. Step 4: Simplify right side
    2,076.25x = 3,005,563.56
  5. Step 5: Solve for x
    x = 3,005,563.56/2,076.25
  6. Step 6: Final answer
    x = 1,447.59

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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.