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Finding the Fourth Proportional to 12,605.41, 17,394.73 and 7,226.70

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Solution

The fourth proportional to 12,605.41, 17,394.73 and 7,226.70 is: 9,972.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.41 : 17,394.73 = 7,226.70 : x
  2. Step 2: Convert to fraction form
    12,605.41/17,394.73 = 7,226.70/x
  3. Step 3: Cross multiply
    12,605.41x = 17,394.73 × 7,226.70
  4. Step 4: Simplify right side
    12,605.41x = 125,706,509.84
  5. Step 5: Solve for x
    x = 125,706,509.84/12,605.41
  6. Step 6: Final answer
    x = 9,972.42

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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.