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Finding the Fourth Proportional to 39,395.81, 59,093.78 and 11,693.81

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Solution

The fourth proportional to 39,395.81, 59,093.78 and 11,693.81 is: 17,540.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,395.81 : 59,093.78 = 11,693.81 : x
  2. Step 2: Convert to fraction form
    39,395.81/59,093.78 = 11,693.81/x
  3. Step 3: Cross multiply
    39,395.81x = 59,093.78 × 11,693.81
  4. Step 4: Simplify right side
    39,395.81x = 691,031,435.50
  5. Step 5: Solve for x
    x = 691,031,435.50/39,395.81
  6. Step 6: Final answer
    x = 17,540.73

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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.