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Finding the Fourth Proportional to 65,894.25, 90,933.93 and 35,679.57

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Solution

The fourth proportional to 65,894.25, 90,933.93 and 35,679.57 is: 49,237.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,894.25 : 90,933.93 = 35,679.57 : x
  2. Step 2: Convert to fraction form
    65,894.25/90,933.93 = 35,679.57/x
  3. Step 3: Cross multiply
    65,894.25x = 90,933.93 × 35,679.57
  4. Step 4: Simplify right side
    65,894.25x = 3,244,483,066.14
  5. Step 5: Solve for x
    x = 3,244,483,066.14/65,894.25
  6. Step 6: Final answer
    x = 49,237.73

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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.