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Finding the Third Proportional to 7,230 and 15,581

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Solution

The third proportional to 7,230 and 15,581 is: 33,577.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230 : 15,581 = 15,581 : x
  2. Step 2: Convert to fraction form
    7,230/15,581 = 15,581/x
  3. Step 3: Cross multiply
    7,230x = 15,581 × 15,581
  4. Step 4: Simplify right side
    7,230x = 242,767,561
  5. Step 5: Solve for x
    x = 242,767,561/7,230
  6. Step 6: Final answer
    x = 33,577.81

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.