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Finding the Fourth Proportional to 17,969.56, 26,966.84 and 7,439.63

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Solution

The fourth proportional to 17,969.56, 26,966.84 and 7,439.63 is: 11,164.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,969.56 : 26,966.84 = 7,439.63 : x
  2. Step 2: Convert to fraction form
    17,969.56/26,966.84 = 7,439.63/x
  3. Step 3: Cross multiply
    17,969.56x = 26,966.84 × 7,439.63
  4. Step 4: Simplify right side
    17,969.56x = 200,623,293.27
  5. Step 5: Solve for x
    x = 200,623,293.27/17,969.56
  6. Step 6: Final answer
    x = 11,164.62

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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.