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Finding the Fourth Proportional to 2,548.53, 3,822.63 and 699.60

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Solution

The fourth proportional to 2,548.53, 3,822.63 and 699.60 is: 1,049.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,548.53 : 3,822.63 = 699.60 : x
  2. Step 2: Convert to fraction form
    2,548.53/3,822.63 = 699.60/x
  3. Step 3: Cross multiply
    2,548.53x = 3,822.63 × 699.60
  4. Step 4: Simplify right side
    2,548.53x = 2,674,311.95
  5. Step 5: Solve for x
    x = 2,674,311.95/2,548.53
  6. Step 6: Final answer
    x = 1,049.35

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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.