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Finding the Fourth Proportional to 2,130.84, 3,193.43 and 960.59

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Solution

The fourth proportional to 2,130.84, 3,193.43 and 960.59 is: 1,439.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.84 : 3,193.43 = 960.59 : x
  2. Step 2: Convert to fraction form
    2,130.84/3,193.43 = 960.59/x
  3. Step 3: Cross multiply
    2,130.84x = 3,193.43 × 960.59
  4. Step 4: Simplify right side
    2,130.84x = 3,067,580.10
  5. Step 5: Solve for x
    x = 3,067,580.10/2,130.84
  6. Step 6: Final answer
    x = 1,439.61

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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.