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Finding the Third Proportional to 786 and 954

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Solution

The third proportional to 786 and 954 is: 1,157.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    786 : 954 = 954 : x
  2. Step 2: Convert to fraction form
    786/954 = 954/x
  3. Step 3: Cross multiply
    786x = 954 × 954
  4. Step 4: Simplify right side
    786x = 910,116
  5. Step 5: Solve for x
    x = 910,116/786
  6. Step 6: Final answer
    x = 1,157.91

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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.