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Finding the Fourth Proportional to 64,848.75, 89,491.41 and 35,040.75

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Solution

The fourth proportional to 64,848.75, 89,491.41 and 35,040.75 is: 48,356.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,848.75 : 89,491.41 = 35,040.75 : x
  2. Step 2: Convert to fraction form
    64,848.75/89,491.41 = 35,040.75/x
  3. Step 3: Cross multiply
    64,848.75x = 89,491.41 × 35,040.75
  4. Step 4: Simplify right side
    64,848.75x = 3,135,846,124.96
  5. Step 5: Solve for x
    x = 3,135,846,124.96/64,848.75
  6. Step 6: Final answer
    x = 48,356.31

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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.