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Finding the Third Proportional to 912.94 and 1,968.47

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Solution

The third proportional to 912.94 and 1,968.47 is: 4,244.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    912.94 : 1,968.47 = 1,968.47 : x
  2. Step 2: Convert to fraction form
    912.94/1,968.47 = 1,968.47/x
  3. Step 3: Cross multiply
    912.94x = 1,968.47 × 1,968.47
  4. Step 4: Simplify right side
    912.94x = 3,874,869.22
  5. Step 5: Solve for x
    x = 3,874,869.22/912.94
  6. Step 6: Final answer
    x = 4,244.40

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.