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Finding the Fourth Proportional to 64,243.57, 96,385.08 and 28,734.77

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Solution

The fourth proportional to 64,243.57, 96,385.08 and 28,734.77 is: 43,110.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,243.57 : 96,385.08 = 28,734.77 : x
  2. Step 2: Convert to fraction form
    64,243.57/96,385.08 = 28,734.77/x
  3. Step 3: Cross multiply
    64,243.57x = 96,385.08 × 28,734.77
  4. Step 4: Simplify right side
    64,243.57x = 2,769,602,479.63
  5. Step 5: Solve for x
    x = 2,769,602,479.63/64,243.57
  6. Step 6: Final answer
    x = 43,110.97

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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.