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Finding the Third Proportional to 651.38 and 1,009.13

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Solution

The third proportional to 651.38 and 1,009.13 is: 1,563.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.38 : 1,009.13 = 1,009.13 : x
  2. Step 2: Convert to fraction form
    651.38/1,009.13 = 1,009.13/x
  3. Step 3: Cross multiply
    651.38x = 1,009.13 × 1,009.13
  4. Step 4: Simplify right side
    651.38x = 1,018,333.27
  5. Step 5: Solve for x
    x = 1,018,333.27/651.38
  6. Step 6: Final answer
    x = 1,563.36

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.