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Finding the Third Proportional to 5,724 and 12,399.75

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Solution

The third proportional to 5,724 and 12,399.75 is: 26,861.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,724 : 12,399.75 = 12,399.75 : x
  2. Step 2: Convert to fraction form
    5,724/12,399.75 = 12,399.75/x
  3. Step 3: Cross multiply
    5,724x = 12,399.75 × 12,399.75
  4. Step 4: Simplify right side
    5,724x = 153,753,800.06
  5. Step 5: Solve for x
    x = 153,753,800.06/5,724
  6. Step 6: Final answer
    x = 26,861.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.