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Finding the Third Proportional to 19,485 and 30,368.25

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Solution

The third proportional to 19,485 and 30,368.25 is: 47,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485 : 30,368.25 = 30,368.25 : x
  2. Step 2: Convert to fraction form
    19,485/30,368.25 = 30,368.25/x
  3. Step 3: Cross multiply
    19,485x = 30,368.25 × 30,368.25
  4. Step 4: Simplify right side
    19,485x = 922,230,608.06
  5. Step 5: Solve for x
    x = 922,230,608.06/19,485
  6. Step 6: Final answer
    x = 47,330.29

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.