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Finding the Third Proportional to 4,190 and 9,146

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Solution

The third proportional to 4,190 and 9,146 is: 19,964.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190 : 9,146 = 9,146 : x
  2. Step 2: Convert to fraction form
    4,190/9,146 = 9,146/x
  3. Step 3: Cross multiply
    4,190x = 9,146 × 9,146
  4. Step 4: Simplify right side
    4,190x = 83,649,316
  5. Step 5: Solve for x
    x = 83,649,316/4,190
  6. Step 6: Final answer
    x = 19,964.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.