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Finding the Third Proportional to 30,261 and 65,624

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Solution

The third proportional to 30,261 and 65,624 is: 142,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,261 : 65,624 = 65,624 : x
  2. Step 2: Convert to fraction form
    30,261/65,624 = 65,624/x
  3. Step 3: Cross multiply
    30,261x = 65,624 × 65,624
  4. Step 4: Simplify right side
    30,261x = 4,306,509,376
  5. Step 5: Solve for x
    x = 4,306,509,376/30,261
  6. Step 6: Final answer
    x = 142,312.20

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.