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Finding the Fourth Proportional to 6,820.41, 9,412.08 and 3,836.25

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Solution

The fourth proportional to 6,820.41, 9,412.08 and 3,836.25 is: 5,293.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.41 : 9,412.08 = 3,836.25 : x
  2. Step 2: Convert to fraction form
    6,820.41/9,412.08 = 3,836.25/x
  3. Step 3: Cross multiply
    6,820.41x = 9,412.08 × 3,836.25
  4. Step 4: Simplify right side
    6,820.41x = 36,107,091.90
  5. Step 5: Solve for x
    x = 36,107,091.90/6,820.41
  6. Step 6: Final answer
    x = 5,293.98

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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.