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Finding the Fourth Proportional to 65,891.67, 90,906.87 and 37,580.97

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Solution

The fourth proportional to 65,891.67, 90,906.87 and 37,580.97 is: 51,848.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,891.67 : 90,906.87 = 37,580.97 : x
  2. Step 2: Convert to fraction form
    65,891.67/90,906.87 = 37,580.97/x
  3. Step 3: Cross multiply
    65,891.67x = 90,906.87 × 37,580.97
  4. Step 4: Simplify right side
    65,891.67x = 3,416,368,354.26
  5. Step 5: Solve for x
    x = 3,416,368,354.26/65,891.67
  6. Step 6: Final answer
    x = 51,848.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.