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Finding the Third Proportional to 1,457.16 and 3,177.56

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Solution

The third proportional to 1,457.16 and 3,177.56 is: 6,929.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.16 : 3,177.56 = 3,177.56 : x
  2. Step 2: Convert to fraction form
    1,457.16/3,177.56 = 3,177.56/x
  3. Step 3: Cross multiply
    1,457.16x = 3,177.56 × 3,177.56
  4. Step 4: Simplify right side
    1,457.16x = 10,096,903.44
  5. Step 5: Solve for x
    x = 10,096,903.44/1,457.16
  6. Step 6: Final answer
    x = 6,929.18

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.