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Finding the Fourth Proportional to 12,244.44, 16,905.27 and 9,406.38

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Solution

The fourth proportional to 12,244.44, 16,905.27 and 9,406.38 is: 12,986.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,244.44 : 16,905.27 = 9,406.38 : x
  2. Step 2: Convert to fraction form
    12,244.44/16,905.27 = 9,406.38/x
  3. Step 3: Cross multiply
    12,244.44x = 16,905.27 × 9,406.38
  4. Step 4: Simplify right side
    12,244.44x = 159,017,393.62
  5. Step 5: Solve for x
    x = 159,017,393.62/12,244.44
  6. Step 6: Final answer
    x = 12,986.91

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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.