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Finding the Third Proportional to 7,672 and 16,779.50

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Solution

The third proportional to 7,672 and 16,779.50 is: 36,698.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672 : 16,779.50 = 16,779.50 : x
  2. Step 2: Convert to fraction form
    7,672/16,779.50 = 16,779.50/x
  3. Step 3: Cross multiply
    7,672x = 16,779.50 × 16,779.50
  4. Step 4: Simplify right side
    7,672x = 281,551,620.25
  5. Step 5: Solve for x
    x = 281,551,620.25/7,672
  6. Step 6: Final answer
    x = 36,698.59

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.