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Finding the Fourth Proportional to 25,982.75, 38,980.74 and 7,262.80

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Solution

The fourth proportional to 25,982.75, 38,980.74 and 7,262.80 is: 10,896.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,982.75 : 38,980.74 = 7,262.80 : x
  2. Step 2: Convert to fraction form
    25,982.75/38,980.74 = 7,262.80/x
  3. Step 3: Cross multiply
    25,982.75x = 38,980.74 × 7,262.80
  4. Step 4: Simplify right side
    25,982.75x = 283,109,318.47
  5. Step 5: Solve for x
    x = 283,109,318.47/25,982.75
  6. Step 6: Final answer
    x = 10,896.05

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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.