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Finding the Third Proportional to 9,350 and 13,890.50

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Solution

The third proportional to 9,350 and 13,890.50 is: 20,635.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,350 : 13,890.50 = 13,890.50 : x
  2. Step 2: Convert to fraction form
    9,350/13,890.50 = 13,890.50/x
  3. Step 3: Cross multiply
    9,350x = 13,890.50 × 13,890.50
  4. Step 4: Simplify right side
    9,350x = 192,945,990.25
  5. Step 5: Solve for x
    x = 192,945,990.25/9,350
  6. Step 6: Final answer
    x = 20,635.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.