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Finding the Third Proportional to 39,228 and 85,745.75

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Solution

The third proportional to 39,228 and 85,745.75 is: 187,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,228 : 85,745.75 = 85,745.75 : x
  2. Step 2: Convert to fraction form
    39,228/85,745.75 = 85,745.75/x
  3. Step 3: Cross multiply
    39,228x = 85,745.75 × 85,745.75
  4. Step 4: Simplify right side
    39,228x = 7,352,333,643.06
  5. Step 5: Solve for x
    x = 7,352,333,643.06/39,228
  6. Step 6: Final answer
    x = 187,425.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.