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Finding the Fourth Proportional to 6,165.70, 9,249.90 and 3,047.20

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Solution

The fourth proportional to 6,165.70, 9,249.90 and 3,047.20 is: 4,571.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,165.70 : 9,249.90 = 3,047.20 : x
  2. Step 2: Convert to fraction form
    6,165.70/9,249.90 = 3,047.20/x
  3. Step 3: Cross multiply
    6,165.70x = 9,249.90 × 3,047.20
  4. Step 4: Simplify right side
    6,165.70x = 28,186,295.28
  5. Step 5: Solve for x
    x = 28,186,295.28/6,165.70
  6. Step 6: Final answer
    x = 4,571.47

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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.