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Finding the Fourth Proportional to 66,466.67, 99,666.68 and 22,077.86

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Solution

The fourth proportional to 66,466.67, 99,666.68 and 22,077.86 is: 33,105.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,466.67 : 99,666.68 = 22,077.86 : x
  2. Step 2: Convert to fraction form
    66,466.67/99,666.68 = 22,077.86/x
  3. Step 3: Cross multiply
    66,466.67x = 99,666.68 × 22,077.86
  4. Step 4: Simplify right side
    66,466.67x = 2,200,426,398.98
  5. Step 5: Solve for x
    x = 2,200,426,398.98/66,466.67
  6. Step 6: Final answer
    x = 33,105.71

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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.