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Finding the Fourth Proportional to 66,999.45, 92,458.83 and 36,785.31

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Solution

The fourth proportional to 66,999.45, 92,458.83 and 36,785.31 is: 50,763.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,999.45 : 92,458.83 = 36,785.31 : x
  2. Step 2: Convert to fraction form
    66,999.45/92,458.83 = 36,785.31/x
  3. Step 3: Cross multiply
    66,999.45x = 92,458.83 × 36,785.31
  4. Step 4: Simplify right side
    66,999.45x = 3,401,126,723.79
  5. Step 5: Solve for x
    x = 3,401,126,723.79/66,999.45
  6. Step 6: Final answer
    x = 50,763.50

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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.