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Finding the Fourth Proportional to 35,893.80, 53,844.48 and 12,520.44

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Solution

The fourth proportional to 35,893.80, 53,844.48 and 12,520.44 is: 18,781.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,893.80 : 53,844.48 = 12,520.44 : x
  2. Step 2: Convert to fraction form
    35,893.80/53,844.48 = 12,520.44/x
  3. Step 3: Cross multiply
    35,893.80x = 53,844.48 × 12,520.44
  4. Step 4: Simplify right side
    35,893.80x = 674,156,581.17
  5. Step 5: Solve for x
    x = 674,156,581.17/35,893.80
  6. Step 6: Final answer
    x = 18,781.98

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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.