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Finding the Fourth Proportional to 53,697.74, 80,540.37 and 14,257.94

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Solution

The fourth proportional to 53,697.74, 80,540.37 and 14,257.94 is: 21,385.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,697.74 : 80,540.37 = 14,257.94 : x
  2. Step 2: Convert to fraction form
    53,697.74/80,540.37 = 14,257.94/x
  3. Step 3: Cross multiply
    53,697.74x = 80,540.37 × 14,257.94
  4. Step 4: Simplify right side
    53,697.74x = 1,148,339,360.34
  5. Step 5: Solve for x
    x = 1,148,339,360.34/53,697.74
  6. Step 6: Final answer
    x = 21,385.25

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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.