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Finding the Third Proportional to 5,126.44 and 8,031.28

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Solution

The third proportional to 5,126.44 and 8,031.28 is: 12,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.44 : 8,031.28 = 8,031.28 : x
  2. Step 2: Convert to fraction form
    5,126.44/8,031.28 = 8,031.28/x
  3. Step 3: Cross multiply
    5,126.44x = 8,031.28 × 8,031.28
  4. Step 4: Simplify right side
    5,126.44x = 64,501,478.52
  5. Step 5: Solve for x
    x = 64,501,478.52/5,126.44
  6. Step 6: Final answer
    x = 12,582.13

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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.