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Finding the Fourth Proportional to 35,246.96, 48,641.12 and 20,141.60

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Solution

The fourth proportional to 35,246.96, 48,641.12 and 20,141.60 is: 27,795.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,246.96 : 48,641.12 = 20,141.60 : x
  2. Step 2: Convert to fraction form
    35,246.96/48,641.12 = 20,141.60/x
  3. Step 3: Cross multiply
    35,246.96x = 48,641.12 × 20,141.60
  4. Step 4: Simplify right side
    35,246.96x = 979,709,982.59
  5. Step 5: Solve for x
    x = 979,709,982.59/35,246.96
  6. Step 6: Final answer
    x = 27,795.59

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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.