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Finding the Third Proportional to 1,130 and 2,438

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Solution

The third proportional to 1,130 and 2,438 is: 5,260.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130 : 2,438 = 2,438 : x
  2. Step 2: Convert to fraction form
    1,130/2,438 = 2,438/x
  3. Step 3: Cross multiply
    1,130x = 2,438 × 2,438
  4. Step 4: Simplify right side
    1,130x = 5,943,844
  5. Step 5: Solve for x
    x = 5,943,844/1,130
  6. Step 6: Final answer
    x = 5,260.04

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.