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Finding the Fourth Proportional to 18,449.16, 27,670.84 and 8,058.12

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Solution

The fourth proportional to 18,449.16, 27,670.84 and 8,058.12 is: 12,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449.16 : 27,670.84 = 8,058.12 : x
  2. Step 2: Convert to fraction form
    18,449.16/27,670.84 = 8,058.12/x
  3. Step 3: Cross multiply
    18,449.16x = 27,670.84 × 8,058.12
  4. Step 4: Simplify right side
    18,449.16x = 222,974,949.22
  5. Step 5: Solve for x
    x = 222,974,949.22/18,449.16
  6. Step 6: Final answer
    x = 12,085.91

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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.