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Finding the Fourth Proportional to 63,761.78, 87,990.98 and 35,467.46

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Solution

The fourth proportional to 63,761.78, 87,990.98 and 35,467.46 is: 48,944.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,761.78 : 87,990.98 = 35,467.46 : x
  2. Step 2: Convert to fraction form
    63,761.78/87,990.98 = 35,467.46/x
  3. Step 3: Cross multiply
    63,761.78x = 87,990.98 × 35,467.46
  4. Step 4: Simplify right side
    63,761.78x = 3,120,816,563.51
  5. Step 5: Solve for x
    x = 3,120,816,563.51/63,761.78
  6. Step 6: Final answer
    x = 48,944.94

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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.