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Finding the Fourth Proportional to 63,638.89, 87,825.63 and 35,344.51

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Solution

The fourth proportional to 63,638.89, 87,825.63 and 35,344.51 is: 48,777.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,638.89 : 87,825.63 = 35,344.51 : x
  2. Step 2: Convert to fraction form
    63,638.89/87,825.63 = 35,344.51/x
  3. Step 3: Cross multiply
    63,638.89x = 87,825.63 × 35,344.51
  4. Step 4: Simplify right side
    63,638.89x = 3,104,153,770.77
  5. Step 5: Solve for x
    x = 3,104,153,770.77/63,638.89
  6. Step 6: Final answer
    x = 48,777.62

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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.