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Finding the Fourth Proportional to 66,568.92, 91,864.32 and 36,354.12

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Solution

The fourth proportional to 66,568.92, 91,864.32 and 36,354.12 is: 50,168.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,568.92 : 91,864.32 = 36,354.12 : x
  2. Step 2: Convert to fraction form
    66,568.92/91,864.32 = 36,354.12/x
  3. Step 3: Cross multiply
    66,568.92x = 91,864.32 × 36,354.12
  4. Step 4: Simplify right side
    66,568.92x = 3,339,646,513.00
  5. Step 5: Solve for x
    x = 3,339,646,513.00/66,568.92
  6. Step 6: Final answer
    x = 50,168.25

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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.