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Finding the Fourth Proportional to 35,171.90, 48,559.87 and 31,388.58

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Solution

The fourth proportional to 35,171.90, 48,559.87 and 31,388.58 is: 43,336.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,171.90 : 48,559.87 = 31,388.58 : x
  2. Step 2: Convert to fraction form
    35,171.90/48,559.87 = 31,388.58/x
  3. Step 3: Cross multiply
    35,171.90x = 48,559.87 × 31,388.58
  4. Step 4: Simplify right side
    35,171.90x = 1,524,225,364.28
  5. Step 5: Solve for x
    x = 1,524,225,364.28/35,171.90
  6. Step 6: Final answer
    x = 43,336.45

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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.