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Finding the Fourth Proportional to 16,860.56, 23,266.86 and 9,786.56

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Solution

The fourth proportional to 16,860.56, 23,266.86 and 9,786.56 is: 13,505.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,860.56 : 23,266.86 = 9,786.56 : x
  2. Step 2: Convert to fraction form
    16,860.56/23,266.86 = 9,786.56/x
  3. Step 3: Cross multiply
    16,860.56x = 23,266.86 × 9,786.56
  4. Step 4: Simplify right side
    16,860.56x = 227,702,521.40
  5. Step 5: Solve for x
    x = 227,702,521.40/16,860.56
  6. Step 6: Final answer
    x = 13,505.04

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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.