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Finding the Fourth Proportional to 6,784.68, 9,363.60 and 3,800.64

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Solution

The fourth proportional to 6,784.68, 9,363.60 and 3,800.64 is: 5,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,784.68 : 9,363.60 = 3,800.64 : x
  2. Step 2: Convert to fraction form
    6,784.68/9,363.60 = 3,800.64/x
  3. Step 3: Cross multiply
    6,784.68x = 9,363.60 × 3,800.64
  4. Step 4: Simplify right side
    6,784.68x = 35,587,672.70
  5. Step 5: Solve for x
    x = 35,587,672.70/6,784.68
  6. Step 6: Final answer
    x = 5,245.30

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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.