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Finding the Third Proportional to 985 and 1,333

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Solution

The third proportional to 985 and 1,333 is: 1,803.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    985 : 1,333 = 1,333 : x
  2. Step 2: Convert to fraction form
    985/1,333 = 1,333/x
  3. Step 3: Cross multiply
    985x = 1,333 × 1,333
  4. Step 4: Simplify right side
    985x = 1,776,889
  5. Step 5: Solve for x
    x = 1,776,889/985
  6. Step 6: Final answer
    x = 1,803.95

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.