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Finding the Third Proportional to 7,680.09 and 11,590.59

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Solution

The third proportional to 7,680.09 and 11,590.59 is: 17,492.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.09 : 11,590.59 = 11,590.59 : x
  2. Step 2: Convert to fraction form
    7,680.09/11,590.59 = 11,590.59/x
  3. Step 3: Cross multiply
    7,680.09x = 11,590.59 × 11,590.59
  4. Step 4: Simplify right side
    7,680.09x = 134,341,863.48
  5. Step 5: Solve for x
    x = 134,341,863.48/7,680.09
  6. Step 6: Final answer
    x = 17,492.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.