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Finding the Fourth Proportional to 18,310.88, 25,268.88 and 9,927.32

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Solution

The fourth proportional to 18,310.88, 25,268.88 and 9,927.32 is: 13,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,310.88 : 25,268.88 = 9,927.32 : x
  2. Step 2: Convert to fraction form
    18,310.88/25,268.88 = 9,927.32/x
  3. Step 3: Cross multiply
    18,310.88x = 25,268.88 × 9,927.32
  4. Step 4: Simplify right side
    18,310.88x = 250,852,257.80
  5. Step 5: Solve for x
    x = 250,852,257.80/18,310.88
  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.