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Finding the Fourth Proportional to 66,299.64, 99,449.72 and 26,857.48

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Solution

The fourth proportional to 66,299.64, 99,449.72 and 26,857.48 is: 40,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,299.64 : 99,449.72 = 26,857.48 : x
  2. Step 2: Convert to fraction form
    66,299.64/99,449.72 = 26,857.48/x
  3. Step 3: Cross multiply
    66,299.64x = 99,449.72 × 26,857.48
  4. Step 4: Simplify right side
    66,299.64x = 2,670,968,865.91
  5. Step 5: Solve for x
    x = 2,670,968,865.91/66,299.64
  6. Step 6: Final answer
    x = 40,286.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.