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Finding the Fourth Proportional to 2,697.85, 3,722.97 and 1,518.92

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Solution

The fourth proportional to 2,697.85, 3,722.97 and 1,518.92 is: 2,096.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,697.85 : 3,722.97 = 1,518.92 : x
  2. Step 2: Convert to fraction form
    2,697.85/3,722.97 = 1,518.92/x
  3. Step 3: Cross multiply
    2,697.85x = 3,722.97 × 1,518.92
  4. Step 4: Simplify right side
    2,697.85x = 5,654,893.59
  5. Step 5: Solve for x
    x = 5,654,893.59/2,697.85
  6. Step 6: Final answer
    x = 2,096.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.