Home / 27,585.76-38,086.32-18,170.32

Finding the Fourth Proportional to 27,585.76, 38,086.32 and 18,170.32

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Solution

The fourth proportional to 27,585.76, 38,086.32 and 18,170.32 is: 25,086.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,585.76 : 38,086.32 = 18,170.32 : x
  2. Step 2: Convert to fraction form
    27,585.76/38,086.32 = 18,170.32/x
  3. Step 3: Cross multiply
    27,585.76x = 38,086.32 × 18,170.32
  4. Step 4: Simplify right side
    27,585.76x = 692,040,622.02
  5. Step 5: Solve for x
    x = 692,040,622.02/27,585.76
  6. Step 6: Final answer
    x = 25,086.88

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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.