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Finding the Third Proportional to 873.75 and 1,364.63

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Solution

The third proportional to 873.75 and 1,364.63 is: 2,131.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    873.75 : 1,364.63 = 1,364.63 : x
  2. Step 2: Convert to fraction form
    873.75/1,364.63 = 1,364.63/x
  3. Step 3: Cross multiply
    873.75x = 1,364.63 × 1,364.63
  4. Step 4: Simplify right side
    873.75x = 1,862,201.39
  5. Step 5: Solve for x
    x = 1,862,201.39/873.75
  6. Step 6: Final answer
    x = 2,131.27

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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.