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Finding the Fourth Proportional to 30,322.35, 41,843.95 and 16,892.78

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Solution

The fourth proportional to 30,322.35, 41,843.95 and 16,892.78 is: 23,311.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,322.35 : 41,843.95 = 16,892.78 : x
  2. Step 2: Convert to fraction form
    30,322.35/41,843.95 = 16,892.78/x
  3. Step 3: Cross multiply
    30,322.35x = 41,843.95 × 16,892.78
  4. Step 4: Simplify right side
    30,322.35x = 706,860,390.23
  5. Step 5: Solve for x
    x = 706,860,390.23/30,322.35
  6. Step 6: Final answer
    x = 23,311.53

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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.