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Finding the Third Proportional to 7,148 and 7,804

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Solution

The third proportional to 7,148 and 7,804 is: 8,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,148 : 7,804 = 7,804 : x
  2. Step 2: Convert to fraction form
    7,148/7,804 = 7,804/x
  3. Step 3: Cross multiply
    7,148x = 7,804 × 7,804
  4. Step 4: Simplify right side
    7,148x = 60,902,416
  5. Step 5: Solve for x
    x = 60,902,416/7,148
  6. Step 6: Final answer
    x = 8,520.20

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.