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Finding the Fourth Proportional to 18,454.80, 27,665.72 and 8,058.32

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Solution

The fourth proportional to 18,454.80, 27,665.72 and 8,058.32 is: 12,080.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,454.80 : 27,665.72 = 8,058.32 : x
  2. Step 2: Convert to fraction form
    18,454.80/27,665.72 = 8,058.32/x
  3. Step 3: Cross multiply
    18,454.80x = 27,665.72 × 8,058.32
  4. Step 4: Simplify right side
    18,454.80x = 222,939,224.79
  5. Step 5: Solve for x
    x = 222,939,224.79/18,454.80
  6. Step 6: Final answer
    x = 12,080.28

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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.