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Finding the Fourth Proportional to 12,223.16, 16,867.86 and 6,917.93

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Solution

The fourth proportional to 12,223.16, 16,867.86 and 6,917.93 is: 9,546.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223.16 : 16,867.86 = 6,917.93 : x
  2. Step 2: Convert to fraction form
    12,223.16/16,867.86 = 6,917.93/x
  3. Step 3: Cross multiply
    12,223.16x = 16,867.86 × 6,917.93
  4. Step 4: Simplify right side
    12,223.16x = 116,690,674.73
  5. Step 5: Solve for x
    x = 116,690,674.73/12,223.16
  6. Step 6: Final answer
    x = 9,546.69

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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.