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Finding the Fourth Proportional to 53,197.99, 79,799.72 and 13,755.44

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Solution

The fourth proportional to 53,197.99, 79,799.72 and 13,755.44 is: 20,633.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,197.99 : 79,799.72 = 13,755.44 : x
  2. Step 2: Convert to fraction form
    53,197.99/79,799.72 = 13,755.44/x
  3. Step 3: Cross multiply
    53,197.99x = 79,799.72 × 13,755.44
  4. Step 4: Simplify right side
    53,197.99x = 1,097,680,260.48
  5. Step 5: Solve for x
    x = 1,097,680,260.48/53,197.99
  6. Step 6: Final answer
    x = 20,633.87

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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.