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Finding the Fourth Proportional to 12,151.16, 16,768.94 and 6,846.16

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Solution

The fourth proportional to 12,151.16, 16,768.94 and 6,846.16 is: 9,447.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.16 : 16,768.94 = 6,846.16 : x
  2. Step 2: Convert to fraction form
    12,151.16/16,768.94 = 6,846.16/x
  3. Step 3: Cross multiply
    12,151.16x = 16,768.94 × 6,846.16
  4. Step 4: Simplify right side
    12,151.16x = 114,802,846.27
  5. Step 5: Solve for x
    x = 114,802,846.27/12,151.16
  6. Step 6: Final answer
    x = 9,447.89

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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.