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Finding the Fourth Proportional to 3,649.88, 5,474.24 and 1,184.90

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Solution

The fourth proportional to 3,649.88, 5,474.24 and 1,184.90 is: 1,777.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.88 : 5,474.24 = 1,184.90 : x
  2. Step 2: Convert to fraction form
    3,649.88/5,474.24 = 1,184.90/x
  3. Step 3: Cross multiply
    3,649.88x = 5,474.24 × 1,184.90
  4. Step 4: Simplify right side
    3,649.88x = 6,486,426.98
  5. Step 5: Solve for x
    x = 6,486,426.98/3,649.88
  6. Step 6: Final answer
    x = 1,777.16

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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.