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Finding the Fourth Proportional to 9,919.56, 14,879.36 and 2,994.08

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Solution

The fourth proportional to 9,919.56, 14,879.36 and 2,994.08 is: 4,491.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.56 : 14,879.36 = 2,994.08 : x
  2. Step 2: Convert to fraction form
    9,919.56/14,879.36 = 2,994.08/x
  3. Step 3: Cross multiply
    9,919.56x = 14,879.36 × 2,994.08
  4. Step 4: Simplify right side
    9,919.56x = 44,549,994.19
  5. Step 5: Solve for x
    x = 44,549,994.19/9,919.56
  6. Step 6: Final answer
    x = 4,491.13

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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.