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Finding the Fourth Proportional to 66,713.44, 92,063.28 and 36,905.44

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Solution

The fourth proportional to 66,713.44, 92,063.28 and 36,905.44 is: 50,928.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,713.44 : 92,063.28 = 36,905.44 : x
  2. Step 2: Convert to fraction form
    66,713.44/92,063.28 = 36,905.44/x
  3. Step 3: Cross multiply
    66,713.44x = 92,063.28 × 36,905.44
  4. Step 4: Simplify right side
    66,713.44x = 3,397,635,856.24
  5. Step 5: Solve for x
    x = 3,397,635,856.24/66,713.44
  6. Step 6: Final answer
    x = 50,928.81

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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.