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Finding the Third Proportional to 7,458 and 9,894

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Solution

The third proportional to 7,458 and 9,894 is: 13,125.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,458 : 9,894 = 9,894 : x
  2. Step 2: Convert to fraction form
    7,458/9,894 = 9,894/x
  3. Step 3: Cross multiply
    7,458x = 9,894 × 9,894
  4. Step 4: Simplify right side
    7,458x = 97,891,236
  5. Step 5: Solve for x
    x = 97,891,236/7,458
  6. Step 6: Final answer
    x = 13,125.67

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.