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Finding the Fourth Proportional to 66,200.32, 91,268.67 and 54,827.92

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Solution

The fourth proportional to 66,200.32, 91,268.67 and 54,827.92 is: 75,589.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,200.32 : 91,268.67 = 54,827.92 : x
  2. Step 2: Convert to fraction form
    66,200.32/91,268.67 = 54,827.92/x
  3. Step 3: Cross multiply
    66,200.32x = 91,268.67 × 54,827.92
  4. Step 4: Simplify right side
    66,200.32x = 5,004,071,337.27
  5. Step 5: Solve for x
    x = 5,004,071,337.27/66,200.32
  6. Step 6: Final answer
    x = 75,589.84

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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.