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Finding the Fourth Proportional to 25,989.26, 38,986.36 and 7,269.30

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Solution

The fourth proportional to 25,989.26, 38,986.36 and 7,269.30 is: 10,904.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,989.26 : 38,986.36 = 7,269.30 : x
  2. Step 2: Convert to fraction form
    25,989.26/38,986.36 = 7,269.30/x
  3. Step 3: Cross multiply
    25,989.26x = 38,986.36 × 7,269.30
  4. Step 4: Simplify right side
    25,989.26x = 283,403,546.75
  5. Step 5: Solve for x
    x = 283,403,546.75/25,989.26
  6. Step 6: Final answer
    x = 10,904.64

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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.