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Finding the Fourth Proportional to 17,908.60, 26,868.26 and 7,229.45

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Solution

The fourth proportional to 17,908.60, 26,868.26 and 7,229.45 is: 10,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,908.60 : 26,868.26 = 7,229.45 : x
  2. Step 2: Convert to fraction form
    17,908.60/26,868.26 = 7,229.45/x
  3. Step 3: Cross multiply
    17,908.60x = 26,868.26 × 7,229.45
  4. Step 4: Simplify right side
    17,908.60x = 194,242,742.26
  5. Step 5: Solve for x
    x = 194,242,742.26/17,908.60
  6. Step 6: Final answer
    x = 10,846.34

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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.