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Finding the Third Proportional to 7,631.25 and 10,899.75

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Solution

The third proportional to 7,631.25 and 10,899.75 is: 15,568.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.25 : 10,899.75 = 10,899.75 : x
  2. Step 2: Convert to fraction form
    7,631.25/10,899.75 = 10,899.75/x
  3. Step 3: Cross multiply
    7,631.25x = 10,899.75 × 10,899.75
  4. Step 4: Simplify right side
    7,631.25x = 118,804,550.06
  5. Step 5: Solve for x
    x = 118,804,550.06/7,631.25
  6. Step 6: Final answer
    x = 15,568.16

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.