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Finding the Third Proportional to 647.63 and 1,017

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Solution

The third proportional to 647.63 and 1,017 is: 1,597.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    647.63 : 1,017 = 1,017 : x
  2. Step 2: Convert to fraction form
    647.63/1,017 = 1,017/x
  3. Step 3: Cross multiply
    647.63x = 1,017 × 1,017
  4. Step 4: Simplify right side
    647.63x = 1,034,289
  5. Step 5: Solve for x
    x = 1,034,289/647.63
  6. Step 6: Final answer
    x = 1,597.05

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.