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Finding the Fourth Proportional to 63,704.03, 87,916.48 and 38,211.39

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Solution

The fourth proportional to 63,704.03, 87,916.48 and 38,211.39 is: 52,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,704.03 : 87,916.48 = 38,211.39 : x
  2. Step 2: Convert to fraction form
    63,704.03/87,916.48 = 38,211.39/x
  3. Step 3: Cross multiply
    63,704.03x = 87,916.48 × 38,211.39
  4. Step 4: Simplify right side
    63,704.03x = 3,359,410,809.18
  5. Step 5: Solve for x
    x = 3,359,410,809.18/63,704.03
  6. Step 6: Final answer
    x = 52,734.67

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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.