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Finding the Third Proportional to 30,700 and 46,650

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Solution

The third proportional to 30,700 and 46,650 is: 70,886.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,700 : 46,650 = 46,650 : x
  2. Step 2: Convert to fraction form
    30,700/46,650 = 46,650/x
  3. Step 3: Cross multiply
    30,700x = 46,650 × 46,650
  4. Step 4: Simplify right side
    30,700x = 2,176,222,500
  5. Step 5: Solve for x
    x = 2,176,222,500/30,700
  6. Step 6: Final answer
    x = 70,886.73

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.