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Finding the Fourth Proportional to 64,415.70, 96,671.55 and 33,234.90

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Solution

The fourth proportional to 64,415.70, 96,671.55 and 33,234.90 is: 49,877.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,415.70 : 96,671.55 = 33,234.90 : x
  2. Step 2: Convert to fraction form
    64,415.70/96,671.55 = 33,234.90/x
  3. Step 3: Cross multiply
    64,415.70x = 96,671.55 × 33,234.90
  4. Step 4: Simplify right side
    64,415.70x = 3,212,869,297.10
  5. Step 5: Solve for x
    x = 3,212,869,297.10/64,415.70
  6. Step 6: Final answer
    x = 49,877.12

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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.