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Finding the Third Proportional to 671.63 and 1,031.06

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Solution

The third proportional to 671.63 and 1,031.06 is: 1,582.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.63 : 1,031.06 = 1,031.06 : x
  2. Step 2: Convert to fraction form
    671.63/1,031.06 = 1,031.06/x
  3. Step 3: Cross multiply
    671.63x = 1,031.06 × 1,031.06
  4. Step 4: Simplify right side
    671.63x = 1,063,089.88
  5. Step 5: Solve for x
    x = 1,063,089.88/671.63
  6. Step 6: Final answer
    x = 1,582.86

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.