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Finding the Fourth Proportional to 64,168.78, 96,253.62 and 19,794.55

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Solution

The fourth proportional to 64,168.78, 96,253.62 and 19,794.55 is: 29,691.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,168.78 : 96,253.62 = 19,794.55 : x
  2. Step 2: Convert to fraction form
    64,168.78/96,253.62 = 19,794.55/x
  3. Step 3: Cross multiply
    64,168.78x = 96,253.62 × 19,794.55
  4. Step 4: Simplify right side
    64,168.78x = 1,905,297,093.77
  5. Step 5: Solve for x
    x = 1,905,297,093.77/64,168.78
  6. Step 6: Final answer
    x = 29,691.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.