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Finding the Fourth Proportional to 30,367.59, 41,908.09 and 16,941.45

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Solution

The fourth proportional to 30,367.59, 41,908.09 and 16,941.45 is: 23,379.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,367.59 : 41,908.09 = 16,941.45 : x
  2. Step 2: Convert to fraction form
    30,367.59/41,908.09 = 16,941.45/x
  3. Step 3: Cross multiply
    30,367.59x = 41,908.09 × 16,941.45
  4. Step 4: Simplify right side
    30,367.59x = 709,983,811.33
  5. Step 5: Solve for x
    x = 709,983,811.33/30,367.59
  6. Step 6: Final answer
    x = 23,379.66

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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.