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Finding the Fourth Proportional to 6,962.92, 9,609.06 and 3,819.40

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Solution

The fourth proportional to 6,962.92, 9,609.06 and 3,819.40 is: 5,270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,962.92 : 9,609.06 = 3,819.40 : x
  2. Step 2: Convert to fraction form
    6,962.92/9,609.06 = 3,819.40/x
  3. Step 3: Cross multiply
    6,962.92x = 9,609.06 × 3,819.40
  4. Step 4: Simplify right side
    6,962.92x = 36,700,843.76
  5. Step 5: Solve for x
    x = 36,700,843.76/6,962.92
  6. Step 6: Final answer
    x = 5,270.90

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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.