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Finding the Third Proportional to 358.13 and 675.75

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Solution

The third proportional to 358.13 and 675.75 is: 1,275.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.13 : 675.75 = 675.75 : x
  2. Step 2: Convert to fraction form
    358.13/675.75 = 675.75/x
  3. Step 3: Cross multiply
    358.13x = 675.75 × 675.75
  4. Step 4: Simplify right side
    358.13x = 456,638.06
  5. Step 5: Solve for x
    x = 456,638.06/358.13
  6. Step 6: Final answer
    x = 1,275.08

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Why These Related Problems?

These problems maintain the same ratio (1.89) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.