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Finding the Fourth Proportional to 17,273.70, 25,910.55 and 13,385.70

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Solution

The fourth proportional to 17,273.70, 25,910.55 and 13,385.70 is: 20,078.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,273.70 : 25,910.55 = 13,385.70 : x
  2. Step 2: Convert to fraction form
    17,273.70/25,910.55 = 13,385.70/x
  3. Step 3: Cross multiply
    17,273.70x = 25,910.55 × 13,385.70
  4. Step 4: Simplify right side
    17,273.70x = 346,830,849.14
  5. Step 5: Solve for x
    x = 346,830,849.14/17,273.70
  6. Step 6: Final answer
    x = 20,078.55

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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.