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Finding the Fourth Proportional to 66,838.60, 92,238.18 and 36,623.32

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Solution

The fourth proportional to 66,838.60, 92,238.18 and 36,623.32 is: 50,540.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,838.60 : 92,238.18 = 36,623.32 : x
  2. Step 2: Convert to fraction form
    66,838.60/92,238.18 = 36,623.32/x
  3. Step 3: Cross multiply
    66,838.60x = 92,238.18 × 36,623.32
  4. Step 4: Simplify right side
    66,838.60x = 3,378,068,382.36
  5. Step 5: Solve for x
    x = 3,378,068,382.36/66,838.60
  6. Step 6: Final answer
    x = 50,540.68

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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.