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Finding the Third Proportional to 1,490 and 3,264

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Solution

The third proportional to 1,490 and 3,264 is: 7,150.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490 : 3,264 = 3,264 : x
  2. Step 2: Convert to fraction form
    1,490/3,264 = 3,264/x
  3. Step 3: Cross multiply
    1,490x = 3,264 × 3,264
  4. Step 4: Simplify right side
    1,490x = 10,653,696
  5. Step 5: Solve for x
    x = 10,653,696/1,490
  6. Step 6: Final answer
    x = 7,150.13

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.