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Finding the Third Proportional to 52,590 and 115,380

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Solution

The third proportional to 52,590 and 115,380 is: 253,138.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,590 : 115,380 = 115,380 : x
  2. Step 2: Convert to fraction form
    52,590/115,380 = 115,380/x
  3. Step 3: Cross multiply
    52,590x = 115,380 × 115,380
  4. Step 4: Simplify right side
    52,590x = 13,312,544,400
  5. Step 5: Solve for x
    x = 13,312,544,400/52,590
  6. Step 6: Final answer
    x = 253,138.32

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.