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Finding the Fourth Proportional to 3,923.33, 5,885.04 and 1,291.01

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Solution

The fourth proportional to 3,923.33, 5,885.04 and 1,291.01 is: 1,936.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.33 : 5,885.04 = 1,291.01 : x
  2. Step 2: Convert to fraction form
    3,923.33/5,885.04 = 1,291.01/x
  3. Step 3: Cross multiply
    3,923.33x = 5,885.04 × 1,291.01
  4. Step 4: Simplify right side
    3,923.33x = 7,597,645.49
  5. Step 5: Solve for x
    x = 7,597,645.49/3,923.33
  6. Step 6: Final answer
    x = 1,936.53

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Double scale
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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.