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Finding the Fourth Proportional to 50,945.60, 76,418.40 and 14,009.60

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Solution

The fourth proportional to 50,945.60, 76,418.40 and 14,009.60 is: 21,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,945.60 : 76,418.40 = 14,009.60 : x
  2. Step 2: Convert to fraction form
    50,945.60/76,418.40 = 14,009.60/x
  3. Step 3: Cross multiply
    50,945.60x = 76,418.40 × 14,009.60
  4. Step 4: Simplify right side
    50,945.60x = 1,070,591,216.64
  5. Step 5: Solve for x
    x = 1,070,591,216.64/50,945.60
  6. Step 6: Final answer
    x = 21,014.40

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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.