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Finding the Third Proportional to 632.63 and 851.06

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Solution

The third proportional to 632.63 and 851.06 is: 1,144.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.63 : 851.06 = 851.06 : x
  2. Step 2: Convert to fraction form
    632.63/851.06 = 851.06/x
  3. Step 3: Cross multiply
    632.63x = 851.06 × 851.06
  4. Step 4: Simplify right side
    632.63x = 724,307.38
  5. Step 5: Solve for x
    x = 724,307.38/632.63
  6. Step 6: Final answer
    x = 1,144.92

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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.