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Finding the Fourth Proportional to 12,160.88, 16,782.01 and 6,571.88

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Solution

The fourth proportional to 12,160.88, 16,782.01 and 6,571.88 is: 9,069.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.88 : 16,782.01 = 6,571.88 : x
  2. Step 2: Convert to fraction form
    12,160.88/16,782.01 = 6,571.88/x
  3. Step 3: Cross multiply
    12,160.88x = 16,782.01 × 6,571.88
  4. Step 4: Simplify right side
    12,160.88x = 110,289,255.54
  5. Step 5: Solve for x
    x = 110,289,255.54/12,160.88
  6. Step 6: Final answer
    x = 9,069.19

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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.