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Finding the Fourth Proportional to 12,660.94, 18,995.51 and 6,087.63

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Solution

The fourth proportional to 12,660.94, 18,995.51 and 6,087.63 is: 9,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660.94 : 18,995.51 = 6,087.63 : x
  2. Step 2: Convert to fraction form
    12,660.94/18,995.51 = 6,087.63/x
  3. Step 3: Cross multiply
    12,660.94x = 18,995.51 × 6,087.63
  4. Step 4: Simplify right side
    12,660.94x = 115,637,636.54
  5. Step 5: Solve for x
    x = 115,637,636.54/12,660.94
  6. Step 6: Final answer
    x = 9,133.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.