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Finding the Third Proportional to 7,914 and 12,501.75

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Solution

The third proportional to 7,914 and 12,501.75 is: 19,749.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914 : 12,501.75 = 12,501.75 : x
  2. Step 2: Convert to fraction form
    7,914/12,501.75 = 12,501.75/x
  3. Step 3: Cross multiply
    7,914x = 12,501.75 × 12,501.75
  4. Step 4: Simplify right side
    7,914x = 156,293,753.06
  5. Step 5: Solve for x
    x = 156,293,753.06/7,914
  6. Step 6: Final answer
    x = 19,749.02

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.