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Finding the Third Proportional to 10,653 and 15,918.75

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Solution

The third proportional to 10,653 and 15,918.75 is: 23,787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653 : 15,918.75 = 15,918.75 : x
  2. Step 2: Convert to fraction form
    10,653/15,918.75 = 15,918.75/x
  3. Step 3: Cross multiply
    10,653x = 15,918.75 × 15,918.75
  4. Step 4: Simplify right side
    10,653x = 253,406,601.56
  5. Step 5: Solve for x
    x = 253,406,601.56/10,653
  6. Step 6: Final answer
    x = 23,787.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.