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Finding the Fourth Proportional to 38,022.76, 52,471.56 and 21,255.76

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Solution

The fourth proportional to 38,022.76, 52,471.56 and 21,255.76 is: 29,333.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,022.76 : 52,471.56 = 21,255.76 : x
  2. Step 2: Convert to fraction form
    38,022.76/52,471.56 = 21,255.76/x
  3. Step 3: Cross multiply
    38,022.76x = 52,471.56 × 21,255.76
  4. Step 4: Simplify right side
    38,022.76x = 1,115,322,886.19
  5. Step 5: Solve for x
    x = 1,115,322,886.19/38,022.76
  6. Step 6: Final answer
    x = 29,333.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.