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Finding the Third Proportional to 748 and 904

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Solution

The third proportional to 748 and 904 is: 1,092.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    748 : 904 = 904 : x
  2. Step 2: Convert to fraction form
    748/904 = 904/x
  3. Step 3: Cross multiply
    748x = 904 × 904
  4. Step 4: Simplify right side
    748x = 817,216
  5. Step 5: Solve for x
    x = 817,216/748
  6. Step 6: Final answer
    x = 1,092.53

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.