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Finding the Third Proportional to 245.63 and 531.75

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Solution

The third proportional to 245.63 and 531.75 is: 1,151.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.63 : 531.75 = 531.75 : x
  2. Step 2: Convert to fraction form
    245.63/531.75 = 531.75/x
  3. Step 3: Cross multiply
    245.63x = 531.75 × 531.75
  4. Step 4: Simplify right side
    245.63x = 282,758.06
  5. Step 5: Solve for x
    x = 282,758.06/245.63
  6. Step 6: Final answer
    x = 1,151.18

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.