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Finding the Fourth Proportional to 6,998.72, 10,498.08 and 6,571.04

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Solution

The fourth proportional to 6,998.72, 10,498.08 and 6,571.04 is: 9,856.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,998.72 : 10,498.08 = 6,571.04 : x
  2. Step 2: Convert to fraction form
    6,998.72/10,498.08 = 6,571.04/x
  3. Step 3: Cross multiply
    6,998.72x = 10,498.08 × 6,571.04
  4. Step 4: Simplify right side
    6,998.72x = 68,983,303.60
  5. Step 5: Solve for x
    x = 68,983,303.60/6,998.72
  6. Step 6: Final answer
    x = 9,856.56

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Double scale
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Similar ratio
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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.