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Finding the Third Proportional to 30,725 and 46,370

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Solution

The third proportional to 30,725 and 46,370 is: 69,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,725 : 46,370 = 46,370 : x
  2. Step 2: Convert to fraction form
    30,725/46,370 = 46,370/x
  3. Step 3: Cross multiply
    30,725x = 46,370 × 46,370
  4. Step 4: Simplify right side
    30,725x = 2,150,176,900
  5. Step 5: Solve for x
    x = 2,150,176,900/30,725
  6. Step 6: Final answer
    x = 69,981.35

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.