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Finding the Fourth Proportional to 64,780.64, 97,222.79 and 33,624.80

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Solution

The fourth proportional to 64,780.64, 97,222.79 and 33,624.80 is: 50,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,780.64 : 97,222.79 = 33,624.80 : x
  2. Step 2: Convert to fraction form
    64,780.64/97,222.79 = 33,624.80/x
  3. Step 3: Cross multiply
    64,780.64x = 97,222.79 × 33,624.80
  4. Step 4: Simplify right side
    64,780.64x = 3,269,096,467.14
  5. Step 5: Solve for x
    x = 3,269,096,467.14/64,780.64
  6. Step 6: Final answer
    x = 50,464.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.