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Finding the Fourth Proportional to 16,919.63, 23,348.90 and 9,365.98

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Solution

The fourth proportional to 16,919.63, 23,348.90 and 9,365.98 is: 12,924.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,919.63 : 23,348.90 = 9,365.98 : x
  2. Step 2: Convert to fraction form
    16,919.63/23,348.90 = 9,365.98/x
  3. Step 3: Cross multiply
    16,919.63x = 23,348.90 × 9,365.98
  4. Step 4: Simplify right side
    16,919.63x = 218,685,166.85
  5. Step 5: Solve for x
    x = 218,685,166.85/16,919.63
  6. Step 6: Final answer
    x = 12,924.94

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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.