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Finding the Fourth Proportional to 3,606.98, 5,410.48 and 1,660.56

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Solution

The fourth proportional to 3,606.98, 5,410.48 and 1,660.56 is: 2,490.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.98 : 5,410.48 = 1,660.56 : x
  2. Step 2: Convert to fraction form
    3,606.98/5,410.48 = 1,660.56/x
  3. Step 3: Cross multiply
    3,606.98x = 5,410.48 × 1,660.56
  4. Step 4: Simplify right side
    3,606.98x = 8,984,426.67
  5. Step 5: Solve for x
    x = 8,984,426.67/3,606.98
  6. Step 6: Final answer
    x = 2,490.84

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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.