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Finding the Third Proportional to 8,969.50 and 19,577

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Solution

The third proportional to 8,969.50 and 19,577 is: 42,729.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.50 : 19,577 = 19,577 : x
  2. Step 2: Convert to fraction form
    8,969.50/19,577 = 19,577/x
  3. Step 3: Cross multiply
    8,969.50x = 19,577 × 19,577
  4. Step 4: Simplify right side
    8,969.50x = 383,258,929
  5. Step 5: Solve for x
    x = 383,258,929/8,969.50
  6. Step 6: Final answer
    x = 42,729.13

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.