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Finding the Fourth Proportional to 64,670.25, 89,250.08 and 36,378.03

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Solution

The fourth proportional to 64,670.25, 89,250.08 and 36,378.03 is: 50,204.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,670.25 : 89,250.08 = 36,378.03 : x
  2. Step 2: Convert to fraction form
    64,670.25/89,250.08 = 36,378.03/x
  3. Step 3: Cross multiply
    64,670.25x = 89,250.08 × 36,378.03
  4. Step 4: Simplify right side
    64,670.25x = 3,246,741,905.85
  5. Step 5: Solve for x
    x = 3,246,741,905.85/64,670.25
  6. Step 6: Final answer
    x = 50,204.57

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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.