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Finding the Third Proportional to 248.63 and 535.13

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Solution

The third proportional to 248.63 and 535.13 is: 1,151.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.63 : 535.13 = 535.13 : x
  2. Step 2: Convert to fraction form
    248.63/535.13 = 535.13/x
  3. Step 3: Cross multiply
    248.63x = 535.13 × 535.13
  4. Step 4: Simplify right side
    248.63x = 286,358.77
  5. Step 5: Solve for x
    x = 286,358.77/248.63
  6. Step 6: Final answer
    x = 1,151.77

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.