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Finding the Fourth Proportional to 17,898.92, 26,858.04 and 10,517.80

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Solution

The fourth proportional to 17,898.92, 26,858.04 and 10,517.80 is: 15,782.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,898.92 : 26,858.04 = 10,517.80 : x
  2. Step 2: Convert to fraction form
    17,898.92/26,858.04 = 10,517.80/x
  3. Step 3: Cross multiply
    17,898.92x = 26,858.04 × 10,517.80
  4. Step 4: Simplify right side
    17,898.92x = 282,487,493.11
  5. Step 5: Solve for x
    x = 282,487,493.11/17,898.92
  6. Step 6: Final answer
    x = 15,782.38

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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.