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Finding the Fourth Proportional to 18,696.96, 28,057.59 and 17,195.22

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Solution

The fourth proportional to 18,696.96, 28,057.59 and 17,195.22 is: 25,804.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696.96 : 28,057.59 = 17,195.22 : x
  2. Step 2: Convert to fraction form
    18,696.96/28,057.59 = 17,195.22/x
  3. Step 3: Cross multiply
    18,696.96x = 28,057.59 × 17,195.22
  4. Step 4: Simplify right side
    18,696.96x = 482,456,432.72
  5. Step 5: Solve for x
    x = 482,456,432.72/18,696.96
  6. Step 6: Final answer
    x = 25,804.00

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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.