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Finding the Fourth Proportional to 11,954.90, 17,918.49 and 10,570.94

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Solution

The fourth proportional to 11,954.90, 17,918.49 and 10,570.94 is: 15,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,954.90 : 17,918.49 = 10,570.94 : x
  2. Step 2: Convert to fraction form
    11,954.90/17,918.49 = 10,570.94/x
  3. Step 3: Cross multiply
    11,954.90x = 17,918.49 × 10,570.94
  4. Step 4: Simplify right side
    11,954.90x = 189,415,193.09
  5. Step 5: Solve for x
    x = 189,415,193.09/11,954.90
  6. Step 6: Final answer
    x = 15,844.15

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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.