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Finding the Fourth Proportional to 29,917.60, 44,876.40 and 20,003.20

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Solution

The fourth proportional to 29,917.60, 44,876.40 and 20,003.20 is: 30,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,917.60 : 44,876.40 = 20,003.20 : x
  2. Step 2: Convert to fraction form
    29,917.60/44,876.40 = 20,003.20/x
  3. Step 3: Cross multiply
    29,917.60x = 44,876.40 × 20,003.20
  4. Step 4: Simplify right side
    29,917.60x = 897,671,604.48
  5. Step 5: Solve for x
    x = 897,671,604.48/29,917.60
  6. Step 6: Final answer
    x = 30,004.80

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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.