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Finding the Fourth Proportional to 7,000.97, 10,487.39 and 3,480.32

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Solution

The fourth proportional to 7,000.97, 10,487.39 and 3,480.32 is: 5,213.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000.97 : 10,487.39 = 3,480.32 : x
  2. Step 2: Convert to fraction form
    7,000.97/10,487.39 = 3,480.32/x
  3. Step 3: Cross multiply
    7,000.97x = 10,487.39 × 3,480.32
  4. Step 4: Simplify right side
    7,000.97x = 36,499,481.98
  5. Step 5: Solve for x
    x = 36,499,481.98/7,000.97
  6. Step 6: Final answer
    x = 5,213.49

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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.