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Finding the Fourth Proportional to 35,286.69, 48,693.84 and 20,947.14

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Solution

The fourth proportional to 35,286.69, 48,693.84 and 20,947.14 is: 28,905.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,286.69 : 48,693.84 = 20,947.14 : x
  2. Step 2: Convert to fraction form
    35,286.69/48,693.84 = 20,947.14/x
  3. Step 3: Cross multiply
    35,286.69x = 48,693.84 × 20,947.14
  4. Step 4: Simplify right side
    35,286.69x = 1,019,996,683.62
  5. Step 5: Solve for x
    x = 1,019,996,683.62/35,286.69
  6. Step 6: Final answer
    x = 28,905.99

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Why These Related Problems?

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