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Finding the Fourth Proportional to 65,894.22, 90,933.30 and 35,678.70

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Solution

The fourth proportional to 65,894.22, 90,933.30 and 35,678.70 is: 49,236.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,894.22 : 90,933.30 = 35,678.70 : x
  2. Step 2: Convert to fraction form
    65,894.22/90,933.30 = 35,678.70/x
  3. Step 3: Cross multiply
    65,894.22x = 90,933.30 × 35,678.70
  4. Step 4: Simplify right side
    65,894.22x = 3,244,381,930.71
  5. Step 5: Solve for x
    x = 3,244,381,930.71/65,894.22
  6. Step 6: Final answer
    x = 49,236.21

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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.