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Finding the Fourth Proportional to 30,379.96, 41,924.48 and 16,950.98

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Solution

The fourth proportional to 30,379.96, 41,924.48 and 16,950.98 is: 23,392.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379.96 : 41,924.48 = 16,950.98 : x
  2. Step 2: Convert to fraction form
    30,379.96/41,924.48 = 16,950.98/x
  3. Step 3: Cross multiply
    30,379.96x = 41,924.48 × 16,950.98
  4. Step 4: Simplify right side
    30,379.96x = 710,661,021.99
  5. Step 5: Solve for x
    x = 710,661,021.99/30,379.96
  6. Step 6: Final answer
    x = 23,392.43

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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.