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Finding the Fourth Proportional to 18,696.48, 28,027.36 and 7,017.44

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Solution

The fourth proportional to 18,696.48, 28,027.36 and 7,017.44 is: 10,519.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696.48 : 28,027.36 = 7,017.44 : x
  2. Step 2: Convert to fraction form
    18,696.48/28,027.36 = 7,017.44/x
  3. Step 3: Cross multiply
    18,696.48x = 28,027.36 × 7,017.44
  4. Step 4: Simplify right side
    18,696.48x = 196,680,317.16
  5. Step 5: Solve for x
    x = 196,680,317.16/18,696.48
  6. Step 6: Final answer
    x = 10,519.64

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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.