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Finding the Fourth Proportional to 54,335.32, 74,993.22 and 35,439.64

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Solution

The fourth proportional to 54,335.32, 74,993.22 and 35,439.64 is: 48,913.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,335.32 : 74,993.22 = 35,439.64 : x
  2. Step 2: Convert to fraction form
    54,335.32/74,993.22 = 35,439.64/x
  3. Step 3: Cross multiply
    54,335.32x = 74,993.22 × 35,439.64
  4. Step 4: Simplify right side
    54,335.32x = 2,657,732,719.24
  5. Step 5: Solve for x
    x = 2,657,732,719.24/54,335.32
  6. Step 6: Final answer
    x = 48,913.54

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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.