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Finding the Fourth Proportional to 11,141.70, 16,724.70 and 6,208.80

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Solution

The fourth proportional to 11,141.70, 16,724.70 and 6,208.80 is: 9,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.70 : 16,724.70 = 6,208.80 : x
  2. Step 2: Convert to fraction form
    11,141.70/16,724.70 = 6,208.80/x
  3. Step 3: Cross multiply
    11,141.70x = 16,724.70 × 6,208.80
  4. Step 4: Simplify right side
    11,141.70x = 103,840,317.36
  5. Step 5: Solve for x
    x = 103,840,317.36/11,141.70
  6. Step 6: Final answer
    x = 9,319.97

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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.