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Finding the Fourth Proportional to 12,254.68, 16,917.22 and 7,217.30

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Solution

The fourth proportional to 12,254.68, 16,917.22 and 7,217.30 is: 9,963.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254.68 : 16,917.22 = 7,217.30 : x
  2. Step 2: Convert to fraction form
    12,254.68/16,917.22 = 7,217.30/x
  3. Step 3: Cross multiply
    12,254.68x = 16,917.22 × 7,217.30
  4. Step 4: Simplify right side
    12,254.68x = 122,096,651.91
  5. Step 5: Solve for x
    x = 122,096,651.91/12,254.68
  6. Step 6: Final answer
    x = 9,963.27

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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.