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Finding the Third Proportional to 4,990 and 5,526

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Solution

The third proportional to 4,990 and 5,526 is: 6,119.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990 : 5,526 = 5,526 : x
  2. Step 2: Convert to fraction form
    4,990/5,526 = 5,526/x
  3. Step 3: Cross multiply
    4,990x = 5,526 × 5,526
  4. Step 4: Simplify right side
    4,990x = 30,536,676
  5. Step 5: Solve for x
    x = 30,536,676/4,990
  6. Step 6: Final answer
    x = 6,119.57

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.