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Finding the Fourth Proportional to 16,786.18, 25,177.65 and 8,462.89

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Solution

The fourth proportional to 16,786.18, 25,177.65 and 8,462.89 is: 12,693.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,786.18 : 25,177.65 = 8,462.89 : x
  2. Step 2: Convert to fraction form
    16,786.18/25,177.65 = 8,462.89/x
  3. Step 3: Cross multiply
    16,786.18x = 25,177.65 × 8,462.89
  4. Step 4: Simplify right side
    16,786.18x = 213,075,682.41
  5. Step 5: Solve for x
    x = 213,075,682.41/16,786.18
  6. Step 6: Final answer
    x = 12,693.52

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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.