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Finding the Third Proportional to 3,318.19 and 4,840.31

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Solution

The third proportional to 3,318.19 and 4,840.31 is: 7,060.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.19 : 4,840.31 = 4,840.31 : x
  2. Step 2: Convert to fraction form
    3,318.19/4,840.31 = 4,840.31/x
  3. Step 3: Cross multiply
    3,318.19x = 4,840.31 × 4,840.31
  4. Step 4: Simplify right side
    3,318.19x = 23,428,625.10
  5. Step 5: Solve for x
    x = 23,428,625.10/3,318.19
  6. Step 6: Final answer
    x = 7,060.67

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.