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Finding the Third Proportional to 2,931.19 and 6,636.94

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Solution

The third proportional to 2,931.19 and 6,636.94 is: 15,027.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.19 : 6,636.94 = 6,636.94 : x
  2. Step 2: Convert to fraction form
    2,931.19/6,636.94 = 6,636.94/x
  3. Step 3: Cross multiply
    2,931.19x = 6,636.94 × 6,636.94
  4. Step 4: Simplify right side
    2,931.19x = 44,048,939.38
  5. Step 5: Solve for x
    x = 44,048,939.38/2,931.19
  6. Step 6: Final answer
    x = 15,027.68

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Why These Related Problems?

These problems maintain the same ratio (2.26) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.