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Finding the Third Proportional to 3,569.06 and 8,649.28

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Solution

The third proportional to 3,569.06 and 8,649.28 is: 20,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,569.06 : 8,649.28 = 8,649.28 : x
  2. Step 2: Convert to fraction form
    3,569.06/8,649.28 = 8,649.28/x
  3. Step 3: Cross multiply
    3,569.06x = 8,649.28 × 8,649.28
  4. Step 4: Simplify right side
    3,569.06x = 74,810,066.14
  5. Step 5: Solve for x
    x = 74,810,066.14/3,569.06
  6. Step 6: Final answer
    x = 20,960.70

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.