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Finding the Fourth Proportional to 63,705.65, 87,906.16 and 35,020.58

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Solution

The fourth proportional to 63,705.65, 87,906.16 and 35,020.58 is: 48,324.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,705.65 : 87,906.16 = 35,020.58 : x
  2. Step 2: Convert to fraction form
    63,705.65/87,906.16 = 35,020.58/x
  3. Step 3: Cross multiply
    63,705.65x = 87,906.16 × 35,020.58
  4. Step 4: Simplify right side
    63,705.65x = 3,078,524,708.77
  5. Step 5: Solve for x
    x = 3,078,524,708.77/63,705.65
  6. Step 6: Final answer
    x = 48,324.20

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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.