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Finding the Fourth Proportional to 30,404.37, 45,611.13 and 10,679.46

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Solution

The fourth proportional to 30,404.37, 45,611.13 and 10,679.46 is: 16,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,404.37 : 45,611.13 = 10,679.46 : x
  2. Step 2: Convert to fraction form
    30,404.37/45,611.13 = 10,679.46/x
  3. Step 3: Cross multiply
    30,404.37x = 45,611.13 × 10,679.46
  4. Step 4: Simplify right side
    30,404.37x = 487,102,238.39
  5. Step 5: Solve for x
    x = 487,102,238.39/30,404.37
  6. Step 6: Final answer
    x = 16,020.80

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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.