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Finding the Third Proportional to 2,386.50 and 5,205

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Solution

The third proportional to 2,386.50 and 5,205 is: 11,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.50 : 5,205 = 5,205 : x
  2. Step 2: Convert to fraction form
    2,386.50/5,205 = 5,205/x
  3. Step 3: Cross multiply
    2,386.50x = 5,205 × 5,205
  4. Step 4: Simplify right side
    2,386.50x = 27,092,025
  5. Step 5: Solve for x
    x = 27,092,025/2,386.50
  6. Step 6: Final answer
    x = 11,352.20

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.