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Finding the Fourth Proportional to 64,873.74, 89,505.50 and 36,573.96

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Solution

The fourth proportional to 64,873.74, 89,505.50 and 36,573.96 is: 50,460.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,873.74 : 89,505.50 = 36,573.96 : x
  2. Step 2: Convert to fraction form
    64,873.74/89,505.50 = 36,573.96/x
  3. Step 3: Cross multiply
    64,873.74x = 89,505.50 × 36,573.96
  4. Step 4: Simplify right side
    64,873.74x = 3,273,570,576.78
  5. Step 5: Solve for x
    x = 3,273,570,576.78/64,873.74
  6. Step 6: Final answer
    x = 50,460.64

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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.