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Finding the Fourth Proportional to 53,959.60, 80,939.40 and 50,676.40

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Solution

The fourth proportional to 53,959.60, 80,939.40 and 50,676.40 is: 76,014.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,959.60 : 80,939.40 = 50,676.40 : x
  2. Step 2: Convert to fraction form
    53,959.60/80,939.40 = 50,676.40/x
  3. Step 3: Cross multiply
    53,959.60x = 80,939.40 × 50,676.40
  4. Step 4: Simplify right side
    53,959.60x = 4,101,717,410.16
  5. Step 5: Solve for x
    x = 4,101,717,410.16/53,959.60
  6. Step 6: Final answer
    x = 76,014.60

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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.