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Finding the Fourth Proportional to 6,800.91, 9,385.22 and 3,816.74

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Solution

The fourth proportional to 6,800.91, 9,385.22 and 3,816.74 is: 5,267.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,800.91 : 9,385.22 = 3,816.74 : x
  2. Step 2: Convert to fraction form
    6,800.91/9,385.22 = 3,816.74/x
  3. Step 3: Cross multiply
    6,800.91x = 9,385.22 × 3,816.74
  4. Step 4: Simplify right side
    6,800.91x = 35,820,948.96
  5. Step 5: Solve for x
    x = 35,820,948.96/6,800.91
  6. Step 6: Final answer
    x = 5,267.08

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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.