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Finding the Third Proportional to 1,957.50 and 3,015

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Solution

The third proportional to 1,957.50 and 3,015 is: 4,643.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.50 : 3,015 = 3,015 : x
  2. Step 2: Convert to fraction form
    1,957.50/3,015 = 3,015/x
  3. Step 3: Cross multiply
    1,957.50x = 3,015 × 3,015
  4. Step 4: Simplify right side
    1,957.50x = 9,090,225
  5. Step 5: Solve for x
    x = 9,090,225/1,957.50
  6. Step 6: Final answer
    x = 4,643.79

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.