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Finding the Third Proportional to 899.25 and 2,187.38

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Solution

The third proportional to 899.25 and 2,187.38 is: 5,320.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    899.25 : 2,187.38 = 2,187.38 : x
  2. Step 2: Convert to fraction form
    899.25/2,187.38 = 2,187.38/x
  3. Step 3: Cross multiply
    899.25x = 2,187.38 × 2,187.38
  4. Step 4: Simplify right side
    899.25x = 4,784,609.39
  5. Step 5: Solve for x
    x = 4,784,609.39/899.25
  6. Step 6: Final answer
    x = 5,320.67

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.