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Finding the Third Proportional to 4,145.34 and 7,435.13

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Solution

The third proportional to 4,145.34 and 7,435.13 is: 13,335.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.34 : 7,435.13 = 7,435.13 : x
  2. Step 2: Convert to fraction form
    4,145.34/7,435.13 = 7,435.13/x
  3. Step 3: Cross multiply
    4,145.34x = 7,435.13 × 7,435.13
  4. Step 4: Simplify right side
    4,145.34x = 55,281,083.77
  5. Step 5: Solve for x
    x = 55,281,083.77/4,145.34
  6. Step 6: Final answer
    x = 13,335.71

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.