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Finding the Fourth Proportional to 17,137.22, 23,596.79 and 15,000.79

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Solution

The fourth proportional to 17,137.22, 23,596.79 and 15,000.79 is: 20,655.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,137.22 : 23,596.79 = 15,000.79 : x
  2. Step 2: Convert to fraction form
    17,137.22/23,596.79 = 15,000.79/x
  3. Step 3: Cross multiply
    17,137.22x = 23,596.79 × 15,000.79
  4. Step 4: Simplify right side
    17,137.22x = 353,970,298.48
  5. Step 5: Solve for x
    x = 353,970,298.48/17,137.22
  6. Step 6: Final answer
    x = 20,655.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.