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Finding the Third Proportional to 1,919.50 and 4,133

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Solution

The third proportional to 1,919.50 and 4,133 is: 8,899.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.50 : 4,133 = 4,133 : x
  2. Step 2: Convert to fraction form
    1,919.50/4,133 = 4,133/x
  3. Step 3: Cross multiply
    1,919.50x = 4,133 × 4,133
  4. Step 4: Simplify right side
    1,919.50x = 17,081,689
  5. Step 5: Solve for x
    x = 17,081,689/1,919.50
  6. Step 6: Final answer
    x = 8,899.03

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.