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Finding the Fourth Proportional to 11,745.93, 16,207.38 and 7,764.99

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Solution

The fourth proportional to 11,745.93, 16,207.38 and 7,764.99 is: 10,714.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.93 : 16,207.38 = 7,764.99 : x
  2. Step 2: Convert to fraction form
    11,745.93/16,207.38 = 7,764.99/x
  3. Step 3: Cross multiply
    11,745.93x = 16,207.38 × 7,764.99
  4. Step 4: Simplify right side
    11,745.93x = 125,850,143.63
  5. Step 5: Solve for x
    x = 125,850,143.63/11,745.93
  6. Step 6: Final answer
    x = 10,714.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.