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Finding the Fourth Proportional to 18,310.74, 25,268.85 and 9,927.26

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Solution

The fourth proportional to 18,310.74, 25,268.85 and 9,927.26 is: 13,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.74 : 25,268.85 = 9,927.26 : x
  2. Step 2: Convert to fraction form
    18,310.74/25,268.85 = 9,927.26/x
  3. Step 3: Cross multiply
    18,310.74x = 25,268.85 × 9,927.26
  4. Step 4: Simplify right side
    18,310.74x = 250,850,443.85
  5. Step 5: Solve for x
    x = 250,850,443.85/18,310.74
  6. Step 6: Final answer
    x = 13,699.63

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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.