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Finding the Fourth Proportional to 6,893.69, 10,341.70 and 2,213.61

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Solution

The fourth proportional to 6,893.69, 10,341.70 and 2,213.61 is: 3,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,893.69 : 10,341.70 = 2,213.61 : x
  2. Step 2: Convert to fraction form
    6,893.69/10,341.70 = 2,213.61/x
  3. Step 3: Cross multiply
    6,893.69x = 10,341.70 × 2,213.61
  4. Step 4: Simplify right side
    6,893.69x = 22,892,490.54
  5. Step 5: Solve for x
    x = 22,892,490.54/6,893.69
  6. Step 6: Final answer
    x = 3,320.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.