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Finding the Fourth Proportional to 30,113.44, 41,557.64 and 18,174.44

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Solution

The fourth proportional to 30,113.44, 41,557.64 and 18,174.44 is: 25,081.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,113.44 : 41,557.64 = 18,174.44 : x
  2. Step 2: Convert to fraction form
    30,113.44/41,557.64 = 18,174.44/x
  3. Step 3: Cross multiply
    30,113.44x = 41,557.64 × 18,174.44
  4. Step 4: Simplify right side
    30,113.44x = 755,286,847.74
  5. Step 5: Solve for x
    x = 755,286,847.74/30,113.44
  6. Step 6: Final answer
    x = 25,081.39

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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.