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Finding the Fourth Proportional to 67,652.66, 101,467.10 and 20,905.94

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Solution

The fourth proportional to 67,652.66, 101,467.10 and 20,905.94 is: 31,355.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,652.66 : 101,467.10 = 20,905.94 : x
  2. Step 2: Convert to fraction form
    67,652.66/101,467.10 = 20,905.94/x
  3. Step 3: Cross multiply
    67,652.66x = 101,467.10 × 20,905.94
  4. Step 4: Simplify right side
    67,652.66x = 2,121,264,649.50
  5. Step 5: Solve for x
    x = 2,121,264,649.50/67,652.66
  6. Step 6: Final answer
    x = 31,355.23

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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.