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Finding the Fourth Proportional to 40,305.78, 60,281.82 and 35,894.52

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Solution

The fourth proportional to 40,305.78, 60,281.82 and 35,894.52 is: 53,684.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,305.78 : 60,281.82 = 35,894.52 : x
  2. Step 2: Convert to fraction form
    40,305.78/60,281.82 = 35,894.52/x
  3. Step 3: Cross multiply
    40,305.78x = 60,281.82 × 35,894.52
  4. Step 4: Simplify right side
    40,305.78x = 2,163,786,993.63
  5. Step 5: Solve for x
    x = 2,163,786,993.63/40,305.78
  6. Step 6: Final answer
    x = 53,684.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.