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Finding the Third Proportional to 3,119 and 4,724

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Solution

The third proportional to 3,119 and 4,724 is: 7,154.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119 : 4,724 = 4,724 : x
  2. Step 2: Convert to fraction form
    3,119/4,724 = 4,724/x
  3. Step 3: Cross multiply
    3,119x = 4,724 × 4,724
  4. Step 4: Simplify right side
    3,119x = 22,316,176
  5. Step 5: Solve for x
    x = 22,316,176/3,119
  6. Step 6: Final answer
    x = 7,154.91

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.