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Finding the Fourth Proportional to 65,360.93, 90,192.78 and 36,676.64

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Solution

The fourth proportional to 65,360.93, 90,192.78 and 36,676.64 is: 50,610.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,360.93 : 90,192.78 = 36,676.64 : x
  2. Step 2: Convert to fraction form
    65,360.93/90,192.78 = 36,676.64/x
  3. Step 3: Cross multiply
    65,360.93x = 90,192.78 × 36,676.64
  4. Step 4: Simplify right side
    65,360.93x = 3,307,968,348.14
  5. Step 5: Solve for x
    x = 3,307,968,348.14/65,360.93
  6. Step 6: Final answer
    x = 50,610.79

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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.