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Finding the Fourth Proportional to 65,241.76, 90,039.44 and 36,949.28

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Solution

The fourth proportional to 65,241.76, 90,039.44 and 36,949.28 is: 50,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,241.76 : 90,039.44 = 36,949.28 : x
  2. Step 2: Convert to fraction form
    65,241.76/90,039.44 = 36,949.28/x
  3. Step 3: Cross multiply
    65,241.76x = 90,039.44 × 36,949.28
  4. Step 4: Simplify right side
    65,241.76x = 3,326,892,479.60
  5. Step 5: Solve for x
    x = 3,326,892,479.60/65,241.76
  6. Step 6: Final answer
    x = 50,993.30

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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.