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Finding the Third Proportional to 6,685 and 14,430

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Solution

The third proportional to 6,685 and 14,430 is: 31,148.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,685 : 14,430 = 14,430 : x
  2. Step 2: Convert to fraction form
    6,685/14,430 = 14,430/x
  3. Step 3: Cross multiply
    6,685x = 14,430 × 14,430
  4. Step 4: Simplify right side
    6,685x = 208,224,900
  5. Step 5: Solve for x
    x = 208,224,900/6,685
  6. Step 6: Final answer
    x = 31,148.08

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.