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Finding the Third Proportional to 28,254.50 and 61,429

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Solution

The third proportional to 28,254.50 and 61,429 is: 133,554.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,254.50 : 61,429 = 61,429 : x
  2. Step 2: Convert to fraction form
    28,254.50/61,429 = 61,429/x
  3. Step 3: Cross multiply
    28,254.50x = 61,429 × 61,429
  4. Step 4: Simplify right side
    28,254.50x = 3,773,522,041
  5. Step 5: Solve for x
    x = 3,773,522,041/28,254.50
  6. Step 6: Final answer
    x = 133,554.73

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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.