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Finding the Third Proportional to 20,220 and 24,432

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Solution

The third proportional to 20,220 and 24,432 is: 29,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220 : 24,432 = 24,432 : x
  2. Step 2: Convert to fraction form
    20,220/24,432 = 24,432/x
  3. Step 3: Cross multiply
    20,220x = 24,432 × 24,432
  4. Step 4: Simplify right side
    20,220x = 596,922,624
  5. Step 5: Solve for x
    x = 596,922,624/20,220
  6. Step 6: Final answer
    x = 29,521.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.