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Finding the Fourth Proportional to 9,919.93, 14,879.91 and 2,994.43

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Solution

The fourth proportional to 9,919.93, 14,879.91 and 2,994.43 is: 4,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.93 : 14,879.91 = 2,994.43 : x
  2. Step 2: Convert to fraction form
    9,919.93/14,879.91 = 2,994.43/x
  3. Step 3: Cross multiply
    9,919.93x = 14,879.91 × 2,994.43
  4. Step 4: Simplify right side
    9,919.93x = 44,556,848.90
  5. Step 5: Solve for x
    x = 44,556,848.90/9,919.93
  6. Step 6: Final answer
    x = 4,491.65

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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.