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Finding the Fourth Proportional to 64,625.76, 89,188.56 and 36,334.08

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Solution

The fourth proportional to 64,625.76, 89,188.56 and 36,334.08 is: 50,143.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,625.76 : 89,188.56 = 36,334.08 : x
  2. Step 2: Convert to fraction form
    64,625.76/89,188.56 = 36,334.08/x
  3. Step 3: Cross multiply
    64,625.76x = 89,188.56 × 36,334.08
  4. Step 4: Simplify right side
    64,625.76x = 3,240,584,274.12
  5. Step 5: Solve for x
    x = 3,240,584,274.12/64,625.76
  6. Step 6: Final answer
    x = 50,143.85

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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.