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Finding the Fourth Proportional to 6,162.43, 8,505.76 and 3,803.20

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Solution

The fourth proportional to 6,162.43, 8,505.76 and 3,803.20 is: 5,249.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,162.43 : 8,505.76 = 3,803.20 : x
  2. Step 2: Convert to fraction form
    6,162.43/8,505.76 = 3,803.20/x
  3. Step 3: Cross multiply
    6,162.43x = 8,505.76 × 3,803.20
  4. Step 4: Simplify right side
    6,162.43x = 32,349,130.64
  5. Step 5: Solve for x
    x = 32,349,130.64/6,162.43
  6. Step 6: Final answer
    x = 5,249.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.