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Finding the Third Proportional to 1,116.28 and 2,516.91

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Solution

The third proportional to 1,116.28 and 2,516.91 is: 5,674.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.28 : 2,516.91 = 2,516.91 : x
  2. Step 2: Convert to fraction form
    1,116.28/2,516.91 = 2,516.91/x
  3. Step 3: Cross multiply
    1,116.28x = 2,516.91 × 2,516.91
  4. Step 4: Simplify right side
    1,116.28x = 6,334,817.07
  5. Step 5: Solve for x
    x = 6,334,817.07/1,116.28
  6. Step 6: Final answer
    x = 5,674.93

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Why These Related Problems?

These problems maintain the same ratio (2.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.