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Finding the Third Proportional to 3,425.63 and 5,130

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Solution

The third proportional to 3,425.63 and 5,130 is: 7,682.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.63 : 5,130 = 5,130 : x
  2. Step 2: Convert to fraction form
    3,425.63/5,130 = 5,130/x
  3. Step 3: Cross multiply
    3,425.63x = 5,130 × 5,130
  4. Step 4: Simplify right side
    3,425.63x = 26,316,900
  5. Step 5: Solve for x
    x = 26,316,900/3,425.63
  6. Step 6: Final answer
    x = 7,682.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.