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Finding the Fourth Proportional to 2,114.02, 3,170.52 and 881.45

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Solution

The fourth proportional to 2,114.02, 3,170.52 and 881.45 is: 1,321.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.02 : 3,170.52 = 881.45 : x
  2. Step 2: Convert to fraction form
    2,114.02/3,170.52 = 881.45/x
  3. Step 3: Cross multiply
    2,114.02x = 3,170.52 × 881.45
  4. Step 4: Simplify right side
    2,114.02x = 2,794,639.00
  5. Step 5: Solve for x
    x = 2,794,639.00/2,114.02
  6. Step 6: Final answer
    x = 1,321.96

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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.