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Finding the Third Proportional to 910 and 1,304

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Solution

The third proportional to 910 and 1,304 is: 1,868.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    910 : 1,304 = 1,304 : x
  2. Step 2: Convert to fraction form
    910/1,304 = 1,304/x
  3. Step 3: Cross multiply
    910x = 1,304 × 1,304
  4. Step 4: Simplify right side
    910x = 1,700,416
  5. Step 5: Solve for x
    x = 1,700,416/910
  6. Step 6: Final answer
    x = 1,868.59

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.