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Finding the Third Proportional to 975.75 and 2,146.13

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Solution

The third proportional to 975.75 and 2,146.13 is: 4,720.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    975.75 : 2,146.13 = 2,146.13 : x
  2. Step 2: Convert to fraction form
    975.75/2,146.13 = 2,146.13/x
  3. Step 3: Cross multiply
    975.75x = 2,146.13 × 2,146.13
  4. Step 4: Simplify right side
    975.75x = 4,605,852.52
  5. Step 5: Solve for x
    x = 4,605,852.52/975.75
  6. Step 6: Final answer
    x = 4,720.32

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.