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Finding the Third Proportional to 28,554 and 45,470

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Solution

The third proportional to 28,554 and 45,470 is: 72,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,554 : 45,470 = 45,470 : x
  2. Step 2: Convert to fraction form
    28,554/45,470 = 45,470/x
  3. Step 3: Cross multiply
    28,554x = 45,470 × 45,470
  4. Step 4: Simplify right side
    28,554x = 2,067,520,900
  5. Step 5: Solve for x
    x = 2,067,520,900/28,554
  6. Step 6: Final answer
    x = 72,407.40

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.