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Finding the Third Proportional to 912.75 and 2,007.63

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Solution

The third proportional to 912.75 and 2,007.63 is: 4,415.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    912.75 : 2,007.63 = 2,007.63 : x
  2. Step 2: Convert to fraction form
    912.75/2,007.63 = 2,007.63/x
  3. Step 3: Cross multiply
    912.75x = 2,007.63 × 2,007.63
  4. Step 4: Simplify right side
    912.75x = 4,030,558.14
  5. Step 5: Solve for x
    x = 4,030,558.14/912.75
  6. Step 6: Final answer
    x = 4,415.84

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.