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Finding the Fourth Proportional to 7,969.04, 11,955.06 and 2,422.88

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Solution

The fourth proportional to 7,969.04, 11,955.06 and 2,422.88 is: 3,634.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.04 : 11,955.06 = 2,422.88 : x
  2. Step 2: Convert to fraction form
    7,969.04/11,955.06 = 2,422.88/x
  3. Step 3: Cross multiply
    7,969.04x = 11,955.06 × 2,422.88
  4. Step 4: Simplify right side
    7,969.04x = 28,965,675.77
  5. Step 5: Solve for x
    x = 28,965,675.77/7,969.04
  6. Step 6: Final answer
    x = 3,634.78

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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.