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Finding the Fourth Proportional to 36,672.16, 50,619.60 and 21,564.08

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Solution

The fourth proportional to 36,672.16, 50,619.60 and 21,564.08 is: 29,765.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,672.16 : 50,619.60 = 21,564.08 : x
  2. Step 2: Convert to fraction form
    36,672.16/50,619.60 = 21,564.08/x
  3. Step 3: Cross multiply
    36,672.16x = 50,619.60 × 21,564.08
  4. Step 4: Simplify right side
    36,672.16x = 1,091,565,103.97
  5. Step 5: Solve for x
    x = 1,091,565,103.97/36,672.16
  6. Step 6: Final answer
    x = 29,765.50

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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.