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Finding the Fourth Proportional to 18,696.24, 28,043.26 and 7,008.48

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Solution

The fourth proportional to 18,696.24, 28,043.26 and 7,008.48 is: 10,512.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696.24 : 28,043.26 = 7,008.48 : x
  2. Step 2: Convert to fraction form
    18,696.24/28,043.26 = 7,008.48/x
  3. Step 3: Cross multiply
    18,696.24x = 28,043.26 × 7,008.48
  4. Step 4: Simplify right side
    18,696.24x = 196,540,626.84
  5. Step 5: Solve for x
    x = 196,540,626.84/18,696.24
  6. Step 6: Final answer
    x = 10,512.31

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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.