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Finding the Third Proportional to 1,888.78 and 3,000.09

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Solution

The third proportional to 1,888.78 and 3,000.09 is: 4,765.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.78 : 3,000.09 = 3,000.09 : x
  2. Step 2: Convert to fraction form
    1,888.78/3,000.09 = 3,000.09/x
  3. Step 3: Cross multiply
    1,888.78x = 3,000.09 × 3,000.09
  4. Step 4: Simplify right side
    1,888.78x = 9,000,562.51
  5. Step 5: Solve for x
    x = 9,000,562.51/1,888.78
  6. Step 6: Final answer
    x = 4,765.28

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.