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Finding the Third Proportional to 2,390 and 3,827

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Solution

The third proportional to 2,390 and 3,827 is: 6,128.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390 : 3,827 = 3,827 : x
  2. Step 2: Convert to fraction form
    2,390/3,827 = 3,827/x
  3. Step 3: Cross multiply
    2,390x = 3,827 × 3,827
  4. Step 4: Simplify right side
    2,390x = 14,645,929
  5. Step 5: Solve for x
    x = 14,645,929/2,390
  6. Step 6: Final answer
    x = 6,128.00

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.