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Finding the Third Proportional to 1,506 and 3,318.75

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Solution

The third proportional to 1,506 and 3,318.75 is: 7,313.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,506 : 3,318.75 = 3,318.75 : x
  2. Step 2: Convert to fraction form
    1,506/3,318.75 = 3,318.75/x
  3. Step 3: Cross multiply
    1,506x = 3,318.75 × 3,318.75
  4. Step 4: Simplify right side
    1,506x = 11,014,101.56
  5. Step 5: Solve for x
    x = 11,014,101.56/1,506
  6. Step 6: Final answer
    x = 7,313.48

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.