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Finding the Third Proportional to 28,148 and 40,892

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Solution

The third proportional to 28,148 and 40,892 is: 59,405.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148 : 40,892 = 40,892 : x
  2. Step 2: Convert to fraction form
    28,148/40,892 = 40,892/x
  3. Step 3: Cross multiply
    28,148x = 40,892 × 40,892
  4. Step 4: Simplify right side
    28,148x = 1,672,155,664
  5. Step 5: Solve for x
    x = 1,672,155,664/28,148
  6. Step 6: Final answer
    x = 59,405.84

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.