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Finding the Fourth Proportional to 66,550.53, 91,837.32 and 36,335.30

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Solution

The fourth proportional to 66,550.53, 91,837.32 and 36,335.30 is: 50,141.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,550.53 : 91,837.32 = 36,335.30 : x
  2. Step 2: Convert to fraction form
    66,550.53/91,837.32 = 36,335.30/x
  3. Step 3: Cross multiply
    66,550.53x = 91,837.32 × 36,335.30
  4. Step 4: Simplify right side
    66,550.53x = 3,336,936,114.21
  5. Step 5: Solve for x
    x = 3,336,936,114.21/66,550.53
  6. Step 6: Final answer
    x = 50,141.39

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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.