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Finding the Fourth Proportional to 25,690.67, 38,629.68 and 23,635.49

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Solution

The fourth proportional to 25,690.67, 38,629.68 and 23,635.49 is: 35,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,690.67 : 38,629.68 = 23,635.49 : x
  2. Step 2: Convert to fraction form
    25,690.67/38,629.68 = 23,635.49/x
  3. Step 3: Cross multiply
    25,690.67x = 38,629.68 × 23,635.49
  4. Step 4: Simplify right side
    25,690.67x = 913,031,448.33
  5. Step 5: Solve for x
    x = 913,031,448.33/25,690.67
  6. Step 6: Final answer
    x = 35,539.41

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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.