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Finding the Fourth Proportional to 20,058.30, 30,078.92 and 6,020.32

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Solution

The fourth proportional to 20,058.30, 30,078.92 and 6,020.32 is: 9,027.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,058.30 : 30,078.92 = 6,020.32 : x
  2. Step 2: Convert to fraction form
    20,058.30/30,078.92 = 6,020.32/x
  3. Step 3: Cross multiply
    20,058.30x = 30,078.92 × 6,020.32
  4. Step 4: Simplify right side
    20,058.30x = 181,084,723.65
  5. Step 5: Solve for x
    x = 181,084,723.65/20,058.30
  6. Step 6: Final answer
    x = 9,027.92

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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.