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Finding the Fourth Proportional to 11,969.88, 17,954.96 and 4,575.06

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Solution

The fourth proportional to 11,969.88, 17,954.96 and 4,575.06 is: 6,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,969.88 : 17,954.96 = 4,575.06 : x
  2. Step 2: Convert to fraction form
    11,969.88/17,954.96 = 4,575.06/x
  3. Step 3: Cross multiply
    11,969.88x = 17,954.96 × 4,575.06
  4. Step 4: Simplify right side
    11,969.88x = 82,145,019.30
  5. Step 5: Solve for x
    x = 82,145,019.30/11,969.88
  6. Step 6: Final answer
    x = 6,862.64

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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.