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Finding the Third Proportional to 3,219 and 4,411.50

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Solution

The third proportional to 3,219 and 4,411.50 is: 6,045.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219 : 4,411.50 = 4,411.50 : x
  2. Step 2: Convert to fraction form
    3,219/4,411.50 = 4,411.50/x
  3. Step 3: Cross multiply
    3,219x = 4,411.50 × 4,411.50
  4. Step 4: Simplify right side
    3,219x = 19,461,332.25
  5. Step 5: Solve for x
    x = 19,461,332.25/3,219
  6. Step 6: Final answer
    x = 6,045.77

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.