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Finding the Third Proportional to 28,066.50 and 42,555.38

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Solution

The third proportional to 28,066.50 and 42,555.38 is: 64,523.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.50 : 42,555.38 = 42,555.38 : x
  2. Step 2: Convert to fraction form
    28,066.50/42,555.38 = 42,555.38/x
  3. Step 3: Cross multiply
    28,066.50x = 42,555.38 × 42,555.38
  4. Step 4: Simplify right side
    28,066.50x = 1,810,959,941.39
  5. Step 5: Solve for x
    x = 1,810,959,941.39/28,066.50
  6. Step 6: Final answer
    x = 64,523.90

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.