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Finding the Third Proportional to 4,316.63 and 6,429.38

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Solution

The third proportional to 4,316.63 and 6,429.38 is: 9,576.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,316.63 : 6,429.38 = 6,429.38 : x
  2. Step 2: Convert to fraction form
    4,316.63/6,429.38 = 6,429.38/x
  3. Step 3: Cross multiply
    4,316.63x = 6,429.38 × 6,429.38
  4. Step 4: Simplify right side
    4,316.63x = 41,336,862.89
  5. Step 5: Solve for x
    x = 41,336,862.89/4,316.63
  6. Step 6: Final answer
    x = 9,576.20

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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.