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Finding the Fourth Proportional to 17,102.70, 25,610.85 and 12,696.30

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Solution

The fourth proportional to 17,102.70, 25,610.85 and 12,696.30 is: 19,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,102.70 : 25,610.85 = 12,696.30 : x
  2. Step 2: Convert to fraction form
    17,102.70/25,610.85 = 12,696.30/x
  3. Step 3: Cross multiply
    17,102.70x = 25,610.85 × 12,696.30
  4. Step 4: Simplify right side
    17,102.70x = 325,163,034.86
  5. Step 5: Solve for x
    x = 325,163,034.86/17,102.70
  6. Step 6: Final answer
    x = 19,012.38

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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.