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Finding the Fourth Proportional to 18,496.74, 25,525.41 and 10,431.25

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Solution

The fourth proportional to 18,496.74, 25,525.41 and 10,431.25 is: 14,395.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,496.74 : 25,525.41 = 10,431.25 : x
  2. Step 2: Convert to fraction form
    18,496.74/25,525.41 = 10,431.25/x
  3. Step 3: Cross multiply
    18,496.74x = 25,525.41 × 10,431.25
  4. Step 4: Simplify right side
    18,496.74x = 266,261,933.06
  5. Step 5: Solve for x
    x = 266,261,933.06/18,496.74
  6. Step 6: Final answer
    x = 14,395.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.