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Finding the Fourth Proportional to 64,243.32, 96,384.70 and 28,734.52

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Solution

The fourth proportional to 64,243.32, 96,384.70 and 28,734.52 is: 43,110.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,243.32 : 96,384.70 = 28,734.52 : x
  2. Step 2: Convert to fraction form
    64,243.32/96,384.70 = 28,734.52/x
  3. Step 3: Cross multiply
    64,243.32x = 96,384.70 × 28,734.52
  4. Step 4: Simplify right side
    64,243.32x = 2,769,567,884.80
  5. Step 5: Solve for x
    x = 2,769,567,884.80/64,243.32
  6. Step 6: Final answer
    x = 43,110.60

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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.