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Finding the Fourth Proportional to 6,938.28, 9,574.65 and 3,794.49

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Solution

The fourth proportional to 6,938.28, 9,574.65 and 3,794.49 is: 5,236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.28 : 9,574.65 = 3,794.49 : x
  2. Step 2: Convert to fraction form
    6,938.28/9,574.65 = 3,794.49/x
  3. Step 3: Cross multiply
    6,938.28x = 9,574.65 × 3,794.49
  4. Step 4: Simplify right side
    6,938.28x = 36,330,913.68
  5. Step 5: Solve for x
    x = 36,330,913.68/6,938.28
  6. Step 6: Final answer
    x = 5,236.30

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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.