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Finding the Fourth Proportional to 2,002.85, 3,000.25 and 999.17

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Solution

The fourth proportional to 2,002.85, 3,000.25 and 999.17 is: 1,496.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,002.85 : 3,000.25 = 999.17 : x
  2. Step 2: Convert to fraction form
    2,002.85/3,000.25 = 999.17/x
  3. Step 3: Cross multiply
    2,002.85x = 3,000.25 × 999.17
  4. Step 4: Simplify right side
    2,002.85x = 2,997,759.79
  5. Step 5: Solve for x
    x = 2,997,759.79/2,002.85
  6. Step 6: Final answer
    x = 1,496.75

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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.