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Finding the Third Proportional to 1,948.50 and 4,729.50

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Solution

The third proportional to 1,948.50 and 4,729.50 is: 11,479.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.50 : 4,729.50 = 4,729.50 : x
  2. Step 2: Convert to fraction form
    1,948.50/4,729.50 = 4,729.50/x
  3. Step 3: Cross multiply
    1,948.50x = 4,729.50 × 4,729.50
  4. Step 4: Simplify right side
    1,948.50x = 22,368,170.25
  5. Step 5: Solve for x
    x = 22,368,170.25/1,948.50
  6. Step 6: Final answer
    x = 11,479.69

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.