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Finding the Fourth Proportional to 16,369.74, 22,590.36 and 8,917.74

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Solution

The fourth proportional to 16,369.74, 22,590.36 and 8,917.74 is: 12,306.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,369.74 : 22,590.36 = 8,917.74 : x
  2. Step 2: Convert to fraction form
    16,369.74/22,590.36 = 8,917.74/x
  3. Step 3: Cross multiply
    16,369.74x = 22,590.36 × 8,917.74
  4. Step 4: Simplify right side
    16,369.74x = 201,454,956.99
  5. Step 5: Solve for x
    x = 201,454,956.99/16,369.74
  6. Step 6: Final answer
    x = 12,306.55

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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.