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Finding the Third Proportional to 28,416 and 45,396

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Solution

The third proportional to 28,416 and 45,396 is: 72,522.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416 : 45,396 = 45,396 : x
  2. Step 2: Convert to fraction form
    28,416/45,396 = 45,396/x
  3. Step 3: Cross multiply
    28,416x = 45,396 × 45,396
  4. Step 4: Simplify right side
    28,416x = 2,060,796,816
  5. Step 5: Solve for x
    x = 2,060,796,816/28,416
  6. Step 6: Final answer
    x = 72,522.41

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.