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Finding the Fourth Proportional to 14,846.79, 20,481.15 and 8,876.88

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Solution

The fourth proportional to 14,846.79, 20,481.15 and 8,876.88 is: 12,245.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,846.79 : 20,481.15 = 8,876.88 : x
  2. Step 2: Convert to fraction form
    14,846.79/20,481.15 = 8,876.88/x
  3. Step 3: Cross multiply
    14,846.79x = 20,481.15 × 8,876.88
  4. Step 4: Simplify right side
    14,846.79x = 181,808,710.81
  5. Step 5: Solve for x
    x = 181,808,710.81/14,846.79
  6. Step 6: Final answer
    x = 12,245.66

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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.