Home / 33,143.19-45,720.18-19,704.89

Finding the Fourth Proportional to 33,143.19, 45,720.18 and 19,704.89

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Solution

The fourth proportional to 33,143.19, 45,720.18 and 19,704.89 is: 27,182.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,143.19 : 45,720.18 = 19,704.89 : x
  2. Step 2: Convert to fraction form
    33,143.19/45,720.18 = 19,704.89/x
  3. Step 3: Cross multiply
    33,143.19x = 45,720.18 × 19,704.89
  4. Step 4: Simplify right side
    33,143.19x = 900,910,889.08
  5. Step 5: Solve for x
    x = 900,910,889.08/33,143.19
  6. Step 6: Final answer
    x = 27,182.38

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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.