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Finding the Fourth Proportional to 63,707.56, 87,893.70 and 43,801

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Solution

The fourth proportional to 63,707.56, 87,893.70 and 43,801 is: 60,429.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,707.56 : 87,893.70 = 43,801 : x
  2. Step 2: Convert to fraction form
    63,707.56/87,893.70 = 43,801/x
  3. Step 3: Cross multiply
    63,707.56x = 87,893.70 × 43,801
  4. Step 4: Simplify right side
    63,707.56x = 3,849,831,953.70
  5. Step 5: Solve for x
    x = 3,849,831,953.70/63,707.56
  6. Step 6: Final answer
    x = 60,429.75

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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.