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Finding the Third Proportional to 19,257 and 28,386

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Solution

The third proportional to 19,257 and 28,386 is: 41,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,257 : 28,386 = 28,386 : x
  2. Step 2: Convert to fraction form
    19,257/28,386 = 28,386/x
  3. Step 3: Cross multiply
    19,257x = 28,386 × 28,386
  4. Step 4: Simplify right side
    19,257x = 805,764,996
  5. Step 5: Solve for x
    x = 805,764,996/19,257
  6. Step 6: Final answer
    x = 41,842.71

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.