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Finding the Third Proportional to 39,655.13 and 85,843.88

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Solution

The third proportional to 39,655.13 and 85,843.88 is: 185,831.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,655.13 : 85,843.88 = 85,843.88 : x
  2. Step 2: Convert to fraction form
    39,655.13/85,843.88 = 85,843.88/x
  3. Step 3: Cross multiply
    39,655.13x = 85,843.88 × 85,843.88
  4. Step 4: Simplify right side
    39,655.13x = 7,369,170,875.02
  5. Step 5: Solve for x
    x = 7,369,170,875.02/39,655.13
  6. Step 6: Final answer
    x = 185,831.49

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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.