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Finding the Fourth Proportional to 35,520.80, 53,269.65 and 11,823.30

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Solution

The fourth proportional to 35,520.80, 53,269.65 and 11,823.30 is: 17,731.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,520.80 : 53,269.65 = 11,823.30 : x
  2. Step 2: Convert to fraction form
    35,520.80/53,269.65 = 11,823.30/x
  3. Step 3: Cross multiply
    35,520.80x = 53,269.65 × 11,823.30
  4. Step 4: Simplify right side
    35,520.80x = 629,823,052.85
  5. Step 5: Solve for x
    x = 629,823,052.85/35,520.80
  6. Step 6: Final answer
    x = 17,731.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.