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Finding the Fourth Proportional to 13,674.77, 18,877.49 and 8,008.73

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Solution

The fourth proportional to 13,674.77, 18,877.49 and 8,008.73 is: 11,055.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.77 : 18,877.49 = 8,008.73 : x
  2. Step 2: Convert to fraction form
    13,674.77/18,877.49 = 8,008.73/x
  3. Step 3: Cross multiply
    13,674.77x = 18,877.49 × 8,008.73
  4. Step 4: Simplify right side
    13,674.77x = 151,184,737.65
  5. Step 5: Solve for x
    x = 151,184,737.65/13,674.77
  6. Step 6: Final answer
    x = 11,055.74

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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.