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Finding the Third Proportional to 6,551.03 and 10,215.79

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Solution

The third proportional to 6,551.03 and 10,215.79 is: 15,930.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,551.03 : 10,215.79 = 10,215.79 : x
  2. Step 2: Convert to fraction form
    6,551.03/10,215.79 = 10,215.79/x
  3. Step 3: Cross multiply
    6,551.03x = 10,215.79 × 10,215.79
  4. Step 4: Simplify right side
    6,551.03x = 104,362,341.18
  5. Step 5: Solve for x
    x = 104,362,341.18/6,551.03
  6. Step 6: Final answer
    x = 15,930.67

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.