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Finding the Fourth Proportional to 64,548.78, 89,085.67 and 36,254.47

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Solution

The fourth proportional to 64,548.78, 89,085.67 and 36,254.47 is: 50,035.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,548.78 : 89,085.67 = 36,254.47 : x
  2. Step 2: Convert to fraction form
    64,548.78/89,085.67 = 36,254.47/x
  3. Step 3: Cross multiply
    64,548.78x = 89,085.67 × 36,254.47
  4. Step 4: Simplify right side
    64,548.78x = 3,229,753,750.44
  5. Step 5: Solve for x
    x = 3,229,753,750.44/64,548.78
  6. Step 6: Final answer
    x = 50,035.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.