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Finding the Third Proportional to 7,372.90 and 15,788.51

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Solution

The third proportional to 7,372.90 and 15,788.51 is: 33,809.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,372.90 : 15,788.51 = 15,788.51 : x
  2. Step 2: Convert to fraction form
    7,372.90/15,788.51 = 15,788.51/x
  3. Step 3: Cross multiply
    7,372.90x = 15,788.51 × 15,788.51
  4. Step 4: Simplify right side
    7,372.90x = 249,277,163.97
  5. Step 5: Solve for x
    x = 249,277,163.97/7,372.90
  6. Step 6: Final answer
    x = 33,809.93

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.