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Finding the Fourth Proportional to 17,858.73, 26,790.09 and 7,328.32

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Solution

The fourth proportional to 17,858.73, 26,790.09 and 7,328.32 is: 10,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,858.73 : 26,790.09 = 7,328.32 : x
  2. Step 2: Convert to fraction form
    17,858.73/26,790.09 = 7,328.32/x
  3. Step 3: Cross multiply
    17,858.73x = 26,790.09 × 7,328.32
  4. Step 4: Simplify right side
    17,858.73x = 196,326,352.35
  5. Step 5: Solve for x
    x = 196,326,352.35/17,858.73
  6. Step 6: Final answer
    x = 10,993.30

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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.