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Finding the Fourth Proportional to 66,410.77, 91,644.20 and 36,195.46

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Solution

The fourth proportional to 66,410.77, 91,644.20 and 36,195.46 is: 49,948.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,410.77 : 91,644.20 = 36,195.46 : x
  2. Step 2: Convert to fraction form
    66,410.77/91,644.20 = 36,195.46/x
  3. Step 3: Cross multiply
    66,410.77x = 91,644.20 × 36,195.46
  4. Step 4: Simplify right side
    66,410.77x = 3,317,103,336.13
  5. Step 5: Solve for x
    x = 3,317,103,336.13/66,410.77
  6. Step 6: Final answer
    x = 49,948.28

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Double scale
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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.