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Finding the Fourth Proportional to 35,431.56, 48,893.76 and 19,515.66

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Solution

The fourth proportional to 35,431.56, 48,893.76 and 19,515.66 is: 26,930.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,431.56 : 48,893.76 = 19,515.66 : x
  2. Step 2: Convert to fraction form
    35,431.56/48,893.76 = 19,515.66/x
  3. Step 3: Cross multiply
    35,431.56x = 48,893.76 × 19,515.66
  4. Step 4: Simplify right side
    35,431.56x = 954,193,996.28
  5. Step 5: Solve for x
    x = 954,193,996.28/35,431.56
  6. Step 6: Final answer
    x = 26,930.62

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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.