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Finding the Third Proportional to 1,683.28 and 3,595.64

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Solution

The third proportional to 1,683.28 and 3,595.64 is: 7,680.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683.28 : 3,595.64 = 3,595.64 : x
  2. Step 2: Convert to fraction form
    1,683.28/3,595.64 = 3,595.64/x
  3. Step 3: Cross multiply
    1,683.28x = 3,595.64 × 3,595.64
  4. Step 4: Simplify right side
    1,683.28x = 12,928,631.50
  5. Step 5: Solve for x
    x = 12,928,631.50/1,683.28
  6. Step 6: Final answer
    x = 7,680.61

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.