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Finding the Third Proportional to 938.75 and 2,051.88

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Solution

The third proportional to 938.75 and 2,051.88 is: 4,484.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    938.75 : 2,051.88 = 2,051.88 : x
  2. Step 2: Convert to fraction form
    938.75/2,051.88 = 2,051.88/x
  3. Step 3: Cross multiply
    938.75x = 2,051.88 × 2,051.88
  4. Step 4: Simplify right side
    938.75x = 4,210,191.02
  5. Step 5: Solve for x
    x = 4,210,191.02/938.75
  6. Step 6: Final answer
    x = 4,484.89

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.