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Finding the Fourth Proportional to 18,010.74, 27,017.41 and 6,917.43

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Solution

The fourth proportional to 18,010.74, 27,017.41 and 6,917.43 is: 10,376.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,010.74 : 27,017.41 = 6,917.43 : x
  2. Step 2: Convert to fraction form
    18,010.74/27,017.41 = 6,917.43/x
  3. Step 3: Cross multiply
    18,010.74x = 27,017.41 × 6,917.43
  4. Step 4: Simplify right side
    18,010.74x = 186,890,974.51
  5. Step 5: Solve for x
    x = 186,890,974.51/18,010.74
  6. Step 6: Final answer
    x = 10,376.64

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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.