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Finding the Fourth Proportional to 7,003.91, 10,502.21 and 2,072.88

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Solution

The fourth proportional to 7,003.91, 10,502.21 and 2,072.88 is: 3,108.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,003.91 : 10,502.21 = 2,072.88 : x
  2. Step 2: Convert to fraction form
    7,003.91/10,502.21 = 2,072.88/x
  3. Step 3: Cross multiply
    7,003.91x = 10,502.21 × 2,072.88
  4. Step 4: Simplify right side
    7,003.91x = 21,769,821.06
  5. Step 5: Solve for x
    x = 21,769,821.06/7,003.91
  6. Step 6: Final answer
    x = 3,108.24

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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.