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Finding the Fourth Proportional to 64,243.51, 96,384.98 and 28,734.71

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Solution

The fourth proportional to 64,243.51, 96,384.98 and 28,734.71 is: 43,110.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,243.51 : 96,384.98 = 28,734.71 : x
  2. Step 2: Convert to fraction form
    64,243.51/96,384.98 = 28,734.71/x
  3. Step 3: Cross multiply
    64,243.51x = 96,384.98 × 28,734.71
  4. Step 4: Simplify right side
    64,243.51x = 2,769,593,966.73
  5. Step 5: Solve for x
    x = 2,769,593,966.73/64,243.51
  6. Step 6: Final answer
    x = 43,110.88

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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.