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Finding the Fourth Proportional to 12,497.48, 17,222.79 and 8,954.54

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Solution

The fourth proportional to 12,497.48, 17,222.79 and 8,954.54 is: 12,340.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,497.48 : 17,222.79 = 8,954.54 : x
  2. Step 2: Convert to fraction form
    12,497.48/17,222.79 = 8,954.54/x
  3. Step 3: Cross multiply
    12,497.48x = 17,222.79 × 8,954.54
  4. Step 4: Simplify right side
    12,497.48x = 154,222,075.85
  5. Step 5: Solve for x
    x = 154,222,075.85/12,497.48
  6. Step 6: Final answer
    x = 12,340.26

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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.