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Finding the Third Proportional to 3,485 and 4,984

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Solution

The third proportional to 3,485 and 4,984 is: 7,127.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485 : 4,984 = 4,984 : x
  2. Step 2: Convert to fraction form
    3,485/4,984 = 4,984/x
  3. Step 3: Cross multiply
    3,485x = 4,984 × 4,984
  4. Step 4: Simplify right side
    3,485x = 24,840,256
  5. Step 5: Solve for x
    x = 24,840,256/3,485
  6. Step 6: Final answer
    x = 7,127.76

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.