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Finding the Third Proportional to 18,596.50 and 40,878.50

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Solution

The third proportional to 18,596.50 and 40,878.50 is: 89,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,596.50 : 40,878.50 = 40,878.50 : x
  2. Step 2: Convert to fraction form
    18,596.50/40,878.50 = 40,878.50/x
  3. Step 3: Cross multiply
    18,596.50x = 40,878.50 × 40,878.50
  4. Step 4: Simplify right side
    18,596.50x = 1,671,051,762.25
  5. Step 5: Solve for x
    x = 1,671,051,762.25/18,596.50
  6. Step 6: Final answer
    x = 89,858.40

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.