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Finding the Fourth Proportional to 44,480.86, 66,747.64 and 16,420.48

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Solution

The fourth proportional to 44,480.86, 66,747.64 and 16,420.48 is: 24,640.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,480.86 : 66,747.64 = 16,420.48 : x
  2. Step 2: Convert to fraction form
    44,480.86/66,747.64 = 16,420.48/x
  3. Step 3: Cross multiply
    44,480.86x = 66,747.64 × 16,420.48
  4. Step 4: Simplify right side
    44,480.86x = 1,096,028,287.67
  5. Step 5: Solve for x
    x = 1,096,028,287.67/44,480.86
  6. Step 6: Final answer
    x = 24,640.45

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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.