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Finding the Third Proportional to 7,653.75 and 11,218.25

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Solution

The third proportional to 7,653.75 and 11,218.25 is: 16,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,653.75 : 11,218.25 = 11,218.25 : x
  2. Step 2: Convert to fraction form
    7,653.75/11,218.25 = 11,218.25/x
  3. Step 3: Cross multiply
    7,653.75x = 11,218.25 × 11,218.25
  4. Step 4: Simplify right side
    7,653.75x = 125,849,133.06
  5. Step 5: Solve for x
    x = 125,849,133.06/7,653.75
  6. Step 6: Final answer
    x = 16,442.81

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.