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Finding the Fourth Proportional to 64,748.81, 89,353.24 and 36,454.61

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Solution

The fourth proportional to 64,748.81, 89,353.24 and 36,454.61 is: 50,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,748.81 : 89,353.24 = 36,454.61 : x
  2. Step 2: Convert to fraction form
    64,748.81/89,353.24 = 36,454.61/x
  3. Step 3: Cross multiply
    64,748.81x = 89,353.24 × 36,454.61
  4. Step 4: Simplify right side
    64,748.81x = 3,257,337,516.44
  5. Step 5: Solve for x
    x = 3,257,337,516.44/64,748.81
  6. Step 6: Final answer
    x = 50,307.30

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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.