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Finding the Third Proportional to 1,719.50 and 3,157

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Solution

The third proportional to 1,719.50 and 3,157 is: 5,796.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.50 : 3,157 = 3,157 : x
  2. Step 2: Convert to fraction form
    1,719.50/3,157 = 3,157/x
  3. Step 3: Cross multiply
    1,719.50x = 3,157 × 3,157
  4. Step 4: Simplify right side
    1,719.50x = 9,966,649
  5. Step 5: Solve for x
    x = 9,966,649/1,719.50
  6. Step 6: Final answer
    x = 5,796.25

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.