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Finding the Fourth Proportional to 12,745.17, 17,594.73 and 7,967.77

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Solution

The fourth proportional to 12,745.17, 17,594.73 and 7,967.77 is: 10,999.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745.17 : 17,594.73 = 7,967.77 : x
  2. Step 2: Convert to fraction form
    12,745.17/17,594.73 = 7,967.77/x
  3. Step 3: Cross multiply
    12,745.17x = 17,594.73 × 7,967.77
  4. Step 4: Simplify right side
    12,745.17x = 140,190,717.87
  5. Step 5: Solve for x
    x = 140,190,717.87/12,745.17
  6. Step 6: Final answer
    x = 10,999.52

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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.