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Finding the Fourth Proportional to 66,785.66, 92,164.20 and 36,570.98

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Solution

The fourth proportional to 66,785.66, 92,164.20 and 36,570.98 is: 50,467.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,785.66 : 92,164.20 = 36,570.98 : x
  2. Step 2: Convert to fraction form
    66,785.66/92,164.20 = 36,570.98/x
  3. Step 3: Cross multiply
    66,785.66x = 92,164.20 × 36,570.98
  4. Step 4: Simplify right side
    66,785.66x = 3,370,535,114.92
  5. Step 5: Solve for x
    x = 3,370,535,114.92/66,785.66
  6. Step 6: Final answer
    x = 50,467.95

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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.