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Finding the Third Proportional to 4,731.75 and 8,779.50

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Solution

The third proportional to 4,731.75 and 8,779.50 is: 16,289.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,731.75 : 8,779.50 = 8,779.50 : x
  2. Step 2: Convert to fraction form
    4,731.75/8,779.50 = 8,779.50/x
  3. Step 3: Cross multiply
    4,731.75x = 8,779.50 × 8,779.50
  4. Step 4: Simplify right side
    4,731.75x = 77,079,620.25
  5. Step 5: Solve for x
    x = 77,079,620.25/4,731.75
  6. Step 6: Final answer
    x = 16,289.88

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.