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Finding the Fourth Proportional to 66,544.64, 91,828.41 and 37,861.64

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Solution

The fourth proportional to 66,544.64, 91,828.41 and 37,861.64 is: 52,247.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,544.64 : 91,828.41 = 37,861.64 : x
  2. Step 2: Convert to fraction form
    66,544.64/91,828.41 = 37,861.64/x
  3. Step 3: Cross multiply
    66,544.64x = 91,828.41 × 37,861.64
  4. Step 4: Simplify right side
    66,544.64x = 3,476,774,201.19
  5. Step 5: Solve for x
    x = 3,476,774,201.19/66,544.64
  6. Step 6: Final answer
    x = 52,247.25

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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.