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Finding the Fourth Proportional to 18,653.49, 27,971.46 and 7,551.73

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Solution

The fourth proportional to 18,653.49, 27,971.46 and 7,551.73 is: 11,324.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653.49 : 27,971.46 = 7,551.73 : x
  2. Step 2: Convert to fraction form
    18,653.49/27,971.46 = 7,551.73/x
  3. Step 3: Cross multiply
    18,653.49x = 27,971.46 × 7,551.73
  4. Step 4: Simplify right side
    18,653.49x = 211,232,948.59
  5. Step 5: Solve for x
    x = 211,232,948.59/18,653.49
  6. Step 6: Final answer
    x = 11,324.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.