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Finding the Fourth Proportional to 65,893.02, 90,932.23 and 35,678.37

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Solution

The fourth proportional to 65,893.02, 90,932.23 and 35,678.37 is: 49,236.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,893.02 : 90,932.23 = 35,678.37 : x
  2. Step 2: Convert to fraction form
    65,893.02/90,932.23 = 35,678.37/x
  3. Step 3: Cross multiply
    65,893.02x = 90,932.23 × 35,678.37
  4. Step 4: Simplify right side
    65,893.02x = 3,244,313,746.87
  5. Step 5: Solve for x
    x = 3,244,313,746.87/65,893.02
  6. Step 6: Final answer
    x = 49,236.08

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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.