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Finding the Fourth Proportional to 2,160.88, 3,241.44 and 700.16

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Solution

The fourth proportional to 2,160.88, 3,241.44 and 700.16 is: 1,050.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.88 : 3,241.44 = 700.16 : x
  2. Step 2: Convert to fraction form
    2,160.88/3,241.44 = 700.16/x
  3. Step 3: Cross multiply
    2,160.88x = 3,241.44 × 700.16
  4. Step 4: Simplify right side
    2,160.88x = 2,269,510.42
  5. Step 5: Solve for x
    x = 2,269,510.42/2,160.88
  6. Step 6: Final answer
    x = 1,050.27

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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.