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Finding the Third Proportional to 18,866.25 and 28,346.63

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Solution

The third proportional to 18,866.25 and 28,346.63 is: 42,590.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.25 : 28,346.63 = 28,346.63 : x
  2. Step 2: Convert to fraction form
    18,866.25/28,346.63 = 28,346.63/x
  3. Step 3: Cross multiply
    18,866.25x = 28,346.63 × 28,346.63
  4. Step 4: Simplify right side
    18,866.25x = 803,531,148.89
  5. Step 5: Solve for x
    x = 803,531,148.89/18,866.25
  6. Step 6: Final answer
    x = 42,590.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.