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Finding the Third Proportional to 7,582.88 and 11,690.63

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Solution

The third proportional to 7,582.88 and 11,690.63 is: 18,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,582.88 : 11,690.63 = 11,690.63 : x
  2. Step 2: Convert to fraction form
    7,582.88/11,690.63 = 11,690.63/x
  3. Step 3: Cross multiply
    7,582.88x = 11,690.63 × 11,690.63
  4. Step 4: Simplify right side
    7,582.88x = 136,670,712.89
  5. Step 5: Solve for x
    x = 136,670,712.89/7,582.88
  6. Step 6: Final answer
    x = 18,023.60

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.