Home / 18,840.32-25,997.43-11,285.58

Finding the Fourth Proportional to 18,840.32, 25,997.43 and 11,285.58

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Solution

The fourth proportional to 18,840.32, 25,997.43 and 11,285.58 is: 15,572.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.32 : 25,997.43 = 11,285.58 : x
  2. Step 2: Convert to fraction form
    18,840.32/25,997.43 = 11,285.58/x
  3. Step 3: Cross multiply
    18,840.32x = 25,997.43 × 11,285.58
  4. Step 4: Simplify right side
    18,840.32x = 293,396,076.06
  5. Step 5: Solve for x
    x = 293,396,076.06/18,840.32
  6. Step 6: Final answer
    x = 15,572.78

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Half scale
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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.