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Finding the Third Proportional to 3,899,831.06 and 8,695,853.72

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Solution

The third proportional to 3,899,831.06 and 8,695,853.72 is: 19,390,037.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,831.06 : 8,695,853.72 = 8,695,853.72 : x
  2. Step 2: Convert to fraction form
    3,899,831.06/8,695,853.72 = 8,695,853.72/x
  3. Step 3: Cross multiply
    3,899,831.06x = 8,695,853.72 × 8,695,853.72
  4. Step 4: Simplify right side
    3,899,831.06x = 75,617,871,897,898.20
  5. Step 5: Solve for x
    x = 75,617,871,897,898.20/3,899,831.06
  6. Step 6: Final answer
    x = 19,390,037.85

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.