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Finding the Fourth Proportional to 18,623.89, 27,955.73 and 7,537.83

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Solution

The fourth proportional to 18,623.89, 27,955.73 and 7,537.83 is: 11,314.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,623.89 : 27,955.73 = 7,537.83 : x
  2. Step 2: Convert to fraction form
    18,623.89/27,955.73 = 7,537.83/x
  3. Step 3: Cross multiply
    18,623.89x = 27,955.73 × 7,537.83
  4. Step 4: Simplify right side
    18,623.89x = 210,725,454.28
  5. Step 5: Solve for x
    x = 210,725,454.28/18,623.89
  6. Step 6: Final answer
    x = 11,314.79

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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.