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Finding the Fourth Proportional to 64,498.60, 96,618.30 and 36,764.20

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Solution

The fourth proportional to 64,498.60, 96,618.30 and 36,764.20 is: 55,072.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,498.60 : 96,618.30 = 36,764.20 : x
  2. Step 2: Convert to fraction form
    64,498.60/96,618.30 = 36,764.20/x
  3. Step 3: Cross multiply
    64,498.60x = 96,618.30 × 36,764.20
  4. Step 4: Simplify right side
    64,498.60x = 3,552,094,504.86
  5. Step 5: Solve for x
    x = 3,552,094,504.86/64,498.60
  6. Step 6: Final answer
    x = 55,072.43

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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.