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Finding the Third Proportional to 6,688 and 14,435

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Solution

The third proportional to 6,688 and 14,435 is: 31,155.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688 : 14,435 = 14,435 : x
  2. Step 2: Convert to fraction form
    6,688/14,435 = 14,435/x
  3. Step 3: Cross multiply
    6,688x = 14,435 × 14,435
  4. Step 4: Simplify right side
    6,688x = 208,369,225
  5. Step 5: Solve for x
    x = 208,369,225/6,688
  6. Step 6: Final answer
    x = 31,155.69

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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.