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Finding the Fourth Proportional to 22,058.66, 30,441.20 and 11,987.12

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Solution

The fourth proportional to 22,058.66, 30,441.20 and 11,987.12 is: 16,542.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,058.66 : 30,441.20 = 11,987.12 : x
  2. Step 2: Convert to fraction form
    22,058.66/30,441.20 = 11,987.12/x
  3. Step 3: Cross multiply
    22,058.66x = 30,441.20 × 11,987.12
  4. Step 4: Simplify right side
    22,058.66x = 364,902,317.34
  5. Step 5: Solve for x
    x = 364,902,317.34/22,058.66
  6. Step 6: Final answer
    x = 16,542.36

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.