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Finding the Fourth Proportional to 18,641.26, 27,968.04 and 7,557.27

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Solution

The fourth proportional to 18,641.26, 27,968.04 and 7,557.27 is: 11,338.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.26 : 27,968.04 = 7,557.27 : x
  2. Step 2: Convert to fraction form
    18,641.26/27,968.04 = 7,557.27/x
  3. Step 3: Cross multiply
    18,641.26x = 27,968.04 × 7,557.27
  4. Step 4: Simplify right side
    18,641.26x = 211,362,029.65
  5. Step 5: Solve for x
    x = 211,362,029.65/18,641.26
  6. Step 6: Final answer
    x = 11,338.40

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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.