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Finding the Fourth Proportional to 48,653.25, 72,974.44 and 13,118.12

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Solution

The fourth proportional to 48,653.25, 72,974.44 and 13,118.12 is: 19,675.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,653.25 : 72,974.44 = 13,118.12 : x
  2. Step 2: Convert to fraction form
    48,653.25/72,974.44 = 13,118.12/x
  3. Step 3: Cross multiply
    48,653.25x = 72,974.44 × 13,118.12
  4. Step 4: Simplify right side
    48,653.25x = 957,287,460.85
  5. Step 5: Solve for x
    x = 957,287,460.85/48,653.25
  6. Step 6: Final answer
    x = 19,675.71

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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.