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Finding the Fourth Proportional to 11,099.70, 16,661.70 and 6,944.40

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Solution

The fourth proportional to 11,099.70, 16,661.70 and 6,944.40 is: 10,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,099.70 : 16,661.70 = 6,944.40 : x
  2. Step 2: Convert to fraction form
    11,099.70/16,661.70 = 6,944.40/x
  3. Step 3: Cross multiply
    11,099.70x = 16,661.70 × 6,944.40
  4. Step 4: Simplify right side
    11,099.70x = 115,705,509.48
  5. Step 5: Solve for x
    x = 115,705,509.48/11,099.70
  6. Step 6: Final answer
    x = 10,424.20

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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.