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Finding the Third Proportional to 4,235.20 and 6,291.49

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Solution

The third proportional to 4,235.20 and 6,291.49 is: 9,346.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,235.20 : 6,291.49 = 6,291.49 : x
  2. Step 2: Convert to fraction form
    4,235.20/6,291.49 = 6,291.49/x
  3. Step 3: Cross multiply
    4,235.20x = 6,291.49 × 6,291.49
  4. Step 4: Simplify right side
    4,235.20x = 39,582,873.95
  5. Step 5: Solve for x
    x = 39,582,873.95/4,235.20
  6. Step 6: Final answer
    x = 9,346.16

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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.