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Finding the Fourth Proportional to 9,919.69, 14,883.41 and 4,369.13

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Solution

The fourth proportional to 9,919.69, 14,883.41 and 4,369.13 is: 6,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.69 : 14,883.41 = 4,369.13 : x
  2. Step 2: Convert to fraction form
    9,919.69/14,883.41 = 4,369.13/x
  3. Step 3: Cross multiply
    9,919.69x = 14,883.41 × 4,369.13
  4. Step 4: Simplify right side
    9,919.69x = 65,027,553.13
  5. Step 5: Solve for x
    x = 65,027,553.13/9,919.69
  6. Step 6: Final answer
    x = 6,555.40

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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.