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Finding the Fourth Proportional to 29,894.88, 41,211.84 and 20,914.56

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Solution

The fourth proportional to 29,894.88, 41,211.84 and 20,914.56 is: 28,831.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,894.88 : 41,211.84 = 20,914.56 : x
  2. Step 2: Convert to fraction form
    29,894.88/41,211.84 = 20,914.56/x
  3. Step 3: Cross multiply
    29,894.88x = 41,211.84 × 20,914.56
  4. Step 4: Simplify right side
    29,894.88x = 861,927,500.39
  5. Step 5: Solve for x
    x = 861,927,500.39/29,894.88
  6. Step 6: Final answer
    x = 28,831.94

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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.