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Finding the Third Proportional to 6,420.75 and 9,590.63

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Solution

The third proportional to 6,420.75 and 9,590.63 is: 14,325.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.75 : 9,590.63 = 9,590.63 : x
  2. Step 2: Convert to fraction form
    6,420.75/9,590.63 = 9,590.63/x
  3. Step 3: Cross multiply
    6,420.75x = 9,590.63 × 9,590.63
  4. Step 4: Simplify right side
    6,420.75x = 91,980,087.89
  5. Step 5: Solve for x
    x = 91,980,087.89/6,420.75
  6. Step 6: Final answer
    x = 14,325.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.