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Finding the Third Proportional to 492.75 and 1,066.50

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Solution

The third proportional to 492.75 and 1,066.50 is: 2,308.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.75 : 1,066.50 = 1,066.50 : x
  2. Step 2: Convert to fraction form
    492.75/1,066.50 = 1,066.50/x
  3. Step 3: Cross multiply
    492.75x = 1,066.50 × 1,066.50
  4. Step 4: Simplify right side
    492.75x = 1,137,422.25
  5. Step 5: Solve for x
    x = 1,137,422.25/492.75
  6. Step 6: Final answer
    x = 2,308.32

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.