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Finding the Fourth Proportional to 63,705.71, 87,906.24 and 35,020.64

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Solution

The fourth proportional to 63,705.71, 87,906.24 and 35,020.64 is: 48,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,705.71 : 87,906.24 = 35,020.64 : x
  2. Step 2: Convert to fraction form
    63,705.71/87,906.24 = 35,020.64/x
  3. Step 3: Cross multiply
    63,705.71x = 87,906.24 × 35,020.64
  4. Step 4: Simplify right side
    63,705.71x = 3,078,533,004.56
  5. Step 5: Solve for x
    x = 3,078,533,004.56/63,705.71
  6. Step 6: Final answer
    x = 48,324.28

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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.