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Finding the Third Proportional to 3,261 and 4,646.50

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Solution

The third proportional to 3,261 and 4,646.50 is: 6,620.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261 : 4,646.50 = 4,646.50 : x
  2. Step 2: Convert to fraction form
    3,261/4,646.50 = 4,646.50/x
  3. Step 3: Cross multiply
    3,261x = 4,646.50 × 4,646.50
  4. Step 4: Simplify right side
    3,261x = 21,589,962.25
  5. Step 5: Solve for x
    x = 21,589,962.25/3,261
  6. Step 6: Final answer
    x = 6,620.66

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.