Home / 38,109.70-57,164.55-11,817.10

Finding the Fourth Proportional to 38,109.70, 57,164.55 and 11,817.10

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Solution

The fourth proportional to 38,109.70, 57,164.55 and 11,817.10 is: 17,725.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,109.70 : 57,164.55 = 11,817.10 : x
  2. Step 2: Convert to fraction form
    38,109.70/57,164.55 = 11,817.10/x
  3. Step 3: Cross multiply
    38,109.70x = 57,164.55 × 11,817.10
  4. Step 4: Simplify right side
    38,109.70x = 675,519,203.81
  5. Step 5: Solve for x
    x = 675,519,203.81/38,109.70
  6. Step 6: Final answer
    x = 17,725.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.