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Finding the Third Proportional to 5,907 and 7,861.50

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Solution

The third proportional to 5,907 and 7,861.50 is: 10,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,907 : 7,861.50 = 7,861.50 : x
  2. Step 2: Convert to fraction form
    5,907/7,861.50 = 7,861.50/x
  3. Step 3: Cross multiply
    5,907x = 7,861.50 × 7,861.50
  4. Step 4: Simplify right side
    5,907x = 61,803,182.25
  5. Step 5: Solve for x
    x = 61,803,182.25/5,907
  6. Step 6: Final answer
    x = 10,462.70

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.