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Finding the Fourth Proportional to 35,241.98, 48,631.23 and 20,134.05

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Solution

The fourth proportional to 35,241.98, 48,631.23 and 20,134.05 is: 27,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,241.98 : 48,631.23 = 20,134.05 : x
  2. Step 2: Convert to fraction form
    35,241.98/48,631.23 = 20,134.05/x
  3. Step 3: Cross multiply
    35,241.98x = 48,631.23 × 20,134.05
  4. Step 4: Simplify right side
    35,241.98x = 979,143,616.38
  5. Step 5: Solve for x
    x = 979,143,616.38/35,241.98
  6. Step 6: Final answer
    x = 27,783.45

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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.