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Finding the Third Proportional to 7,148 and 11,046

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Solution

The third proportional to 7,148 and 11,046 is: 17,069.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148 : 11,046 = 11,046 : x
  2. Step 2: Convert to fraction form
    7,148/11,046 = 11,046/x
  3. Step 3: Cross multiply
    7,148x = 11,046 × 11,046
  4. Step 4: Simplify right side
    7,148x = 122,014,116
  5. Step 5: Solve for x
    x = 122,014,116/7,148
  6. Step 6: Final answer
    x = 17,069.69

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.