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Finding the Fourth Proportional to 38,645.58, 57,971.07 and 12,352.44

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Solution

The fourth proportional to 38,645.58, 57,971.07 and 12,352.44 is: 18,529.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,645.58 : 57,971.07 = 12,352.44 : x
  2. Step 2: Convert to fraction form
    38,645.58/57,971.07 = 12,352.44/x
  3. Step 3: Cross multiply
    38,645.58x = 57,971.07 × 12,352.44
  4. Step 4: Simplify right side
    38,645.58x = 716,084,163.91
  5. Step 5: Solve for x
    x = 716,084,163.91/38,645.58
  6. Step 6: Final answer
    x = 18,529.52

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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.