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Finding the Fourth Proportional to 18,526.26, 27,789.42 and 4,675.26

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Solution

The fourth proportional to 18,526.26, 27,789.42 and 4,675.26 is: 7,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,526.26 : 27,789.42 = 4,675.26 : x
  2. Step 2: Convert to fraction form
    18,526.26/27,789.42 = 4,675.26/x
  3. Step 3: Cross multiply
    18,526.26x = 27,789.42 × 4,675.26
  4. Step 4: Simplify right side
    18,526.26x = 129,922,763.75
  5. Step 5: Solve for x
    x = 129,922,763.75/18,526.26
  6. Step 6: Final answer
    x = 7,012.90

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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.