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Finding the Fourth Proportional to 3,670.55, 5,505.77 and 1,073.49

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Solution

The fourth proportional to 3,670.55, 5,505.77 and 1,073.49 is: 1,610.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.55 : 5,505.77 = 1,073.49 : x
  2. Step 2: Convert to fraction form
    3,670.55/5,505.77 = 1,073.49/x
  3. Step 3: Cross multiply
    3,670.55x = 5,505.77 × 1,073.49
  4. Step 4: Simplify right side
    3,670.55x = 5,910,371.07
  5. Step 5: Solve for x
    x = 5,910,371.07/3,670.55
  6. Step 6: Final answer
    x = 1,610.21

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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.