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Finding the Third Proportional to 15,347.25 and 21,984.75

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Solution

The third proportional to 15,347.25 and 21,984.75 is: 31,492.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,347.25 : 21,984.75 = 21,984.75 : x
  2. Step 2: Convert to fraction form
    15,347.25/21,984.75 = 21,984.75/x
  3. Step 3: Cross multiply
    15,347.25x = 21,984.75 × 21,984.75
  4. Step 4: Simplify right side
    15,347.25x = 483,329,232.56
  5. Step 5: Solve for x
    x = 483,329,232.56/15,347.25
  6. Step 6: Final answer
    x = 31,492.89

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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.