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Finding the Fourth Proportional to 66,609.72, 99,892.50 and 22,224.12

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Solution

The fourth proportional to 66,609.72, 99,892.50 and 22,224.12 is: 33,328.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,609.72 : 99,892.50 = 22,224.12 : x
  2. Step 2: Convert to fraction form
    66,609.72/99,892.50 = 22,224.12/x
  3. Step 3: Cross multiply
    66,609.72x = 99,892.50 × 22,224.12
  4. Step 4: Simplify right side
    66,609.72x = 2,220,022,907.10
  5. Step 5: Solve for x
    x = 2,220,022,907.10/66,609.72
  6. Step 6: Final answer
    x = 33,328.81

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1.5x scale

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.