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Finding the Fourth Proportional to 11,079.74, 16,623.54 and 6,810.32

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Solution

The fourth proportional to 11,079.74, 16,623.54 and 6,810.32 is: 10,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.74 : 16,623.54 = 6,810.32 : x
  2. Step 2: Convert to fraction form
    11,079.74/16,623.54 = 6,810.32/x
  3. Step 3: Cross multiply
    11,079.74x = 16,623.54 × 6,810.32
  4. Step 4: Simplify right side
    11,079.74x = 113,211,668.49
  5. Step 5: Solve for x
    x = 113,211,668.49/11,079.74
  6. Step 6: Final answer
    x = 10,217.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.