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Finding the Third Proportional to 8,482.78 and 13,208.91

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Solution

The third proportional to 8,482.78 and 13,208.91 is: 20,568.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482.78 : 13,208.91 = 13,208.91 : x
  2. Step 2: Convert to fraction form
    8,482.78/13,208.91 = 13,208.91/x
  3. Step 3: Cross multiply
    8,482.78x = 13,208.91 × 13,208.91
  4. Step 4: Simplify right side
    8,482.78x = 174,475,204.32
  5. Step 5: Solve for x
    x = 174,475,204.32/8,482.78
  6. Step 6: Final answer
    x = 20,568.16

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.