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Finding the Third Proportional to 7,388 and 11,706

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Solution

The third proportional to 7,388 and 11,706 is: 18,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388 : 11,706 = 11,706 : x
  2. Step 2: Convert to fraction form
    7,388/11,706 = 11,706/x
  3. Step 3: Cross multiply
    7,388x = 11,706 × 11,706
  4. Step 4: Simplify right side
    7,388x = 137,030,436
  5. Step 5: Solve for x
    x = 137,030,436/7,388
  6. Step 6: Final answer
    x = 18,547.70

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.