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Finding the Third Proportional to 18,602.75 and 28,071.75

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Solution

The third proportional to 18,602.75 and 28,071.75 is: 42,360.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,602.75 : 28,071.75 = 28,071.75 : x
  2. Step 2: Convert to fraction form
    18,602.75/28,071.75 = 28,071.75/x
  3. Step 3: Cross multiply
    18,602.75x = 28,071.75 × 28,071.75
  4. Step 4: Simplify right side
    18,602.75x = 788,023,148.06
  5. Step 5: Solve for x
    x = 788,023,148.06/18,602.75
  6. Step 6: Final answer
    x = 42,360.57

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.