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Finding the Fourth Proportional to 17,103.90, 25,672.05 and 10,542.90

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Solution

The fourth proportional to 17,103.90, 25,672.05 and 10,542.90 is: 15,824.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,103.90 : 25,672.05 = 10,542.90 : x
  2. Step 2: Convert to fraction form
    17,103.90/25,672.05 = 10,542.90/x
  3. Step 3: Cross multiply
    17,103.90x = 25,672.05 × 10,542.90
  4. Step 4: Simplify right side
    17,103.90x = 270,657,855.95
  5. Step 5: Solve for x
    x = 270,657,855.95/17,103.90
  6. Step 6: Final answer
    x = 15,824.34

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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.