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Finding the Third Proportional to 3,871,819.13 and 8,349,809.06

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Solution

The third proportional to 3,871,819.13 and 8,349,809.06 is: 18,006,861.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871,819.13 : 8,349,809.06 = 8,349,809.06 : x
  2. Step 2: Convert to fraction form
    3,871,819.13/8,349,809.06 = 8,349,809.06/x
  3. Step 3: Cross multiply
    3,871,819.13x = 8,349,809.06 × 8,349,809.06
  4. Step 4: Simplify right side
    3,871,819.13x = 69,719,311,380,207.12
  5. Step 5: Solve for x
    x = 69,719,311,380,207.12/3,871,819.13
  6. Step 6: Final answer
    x = 18,006,861.67

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.