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Finding the Fourth Proportional to 25,599.44, 38,399.40 and 7,131.44

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Solution

The fourth proportional to 25,599.44, 38,399.40 and 7,131.44 is: 10,697.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,599.44 : 38,399.40 = 7,131.44 : x
  2. Step 2: Convert to fraction form
    25,599.44/38,399.40 = 7,131.44/x
  3. Step 3: Cross multiply
    25,599.44x = 38,399.40 × 7,131.44
  4. Step 4: Simplify right side
    25,599.44x = 273,843,017.14
  5. Step 5: Solve for x
    x = 273,843,017.14/25,599.44
  6. Step 6: Final answer
    x = 10,697.23

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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.