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Finding the Third Proportional to 944 and 1,490

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Solution

The third proportional to 944 and 1,490 is: 2,351.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    944 : 1,490 = 1,490 : x
  2. Step 2: Convert to fraction form
    944/1,490 = 1,490/x
  3. Step 3: Cross multiply
    944x = 1,490 × 1,490
  4. Step 4: Simplify right side
    944x = 2,220,100
  5. Step 5: Solve for x
    x = 2,220,100/944
  6. Step 6: Final answer
    x = 2,351.80

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.