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Finding the Fourth Proportional to 35,481.67, 48,962.47 and 20,363.69

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Solution

The fourth proportional to 35,481.67, 48,962.47 and 20,363.69 is: 28,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,481.67 : 48,962.47 = 20,363.69 : x
  2. Step 2: Convert to fraction form
    35,481.67/48,962.47 = 20,363.69/x
  3. Step 3: Cross multiply
    35,481.67x = 48,962.47 × 20,363.69
  4. Step 4: Simplify right side
    35,481.67x = 997,056,727.67
  5. Step 5: Solve for x
    x = 997,056,727.67/35,481.67
  6. Step 6: Final answer
    x = 28,100.61

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1.5x scale

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.