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Finding the Fourth Proportional to 75,517, 104,213.46 and 41,989.48

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Solution

The fourth proportional to 75,517, 104,213.46 and 41,989.48 is: 57,945.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,517 : 104,213.46 = 41,989.48 : x
  2. Step 2: Convert to fraction form
    75,517/104,213.46 = 41,989.48/x
  3. Step 3: Cross multiply
    75,517x = 104,213.46 × 41,989.48
  4. Step 4: Simplify right side
    75,517x = 4,375,868,994.40
  5. Step 5: Solve for x
    x = 4,375,868,994.40/75,517
  6. Step 6: Final answer
    x = 57,945.48

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1.5x scale

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.