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Finding the Third Proportional to 451.13 and 972.84

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Solution

The third proportional to 451.13 and 972.84 is: 2,097.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.13 : 972.84 = 972.84 : x
  2. Step 2: Convert to fraction form
    451.13/972.84 = 972.84/x
  3. Step 3: Cross multiply
    451.13x = 972.84 × 972.84
  4. Step 4: Simplify right side
    451.13x = 946,424.96
  5. Step 5: Solve for x
    x = 946,424.96/451.13
  6. Step 6: Final answer
    x = 2,097.92

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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.