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Finding the Fourth Proportional to 12,124.88, 16,736.87 and 7,933.13

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Solution

The fourth proportional to 12,124.88, 16,736.87 and 7,933.13 is: 10,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.88 : 16,736.87 = 7,933.13 : x
  2. Step 2: Convert to fraction form
    12,124.88/16,736.87 = 7,933.13/x
  3. Step 3: Cross multiply
    12,124.88x = 16,736.87 × 7,933.13
  4. Step 4: Simplify right side
    12,124.88x = 132,775,725.84
  5. Step 5: Solve for x
    x = 132,775,725.84/12,124.88
  6. Step 6: Final answer
    x = 10,950.68

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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.