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Finding the Fourth Proportional to 16,087.76, 24,079.80 and 12,631.76

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Solution

The fourth proportional to 16,087.76, 24,079.80 and 12,631.76 is: 18,906.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,087.76 : 24,079.80 = 12,631.76 : x
  2. Step 2: Convert to fraction form
    16,087.76/24,079.80 = 12,631.76/x
  3. Step 3: Cross multiply
    16,087.76x = 24,079.80 × 12,631.76
  4. Step 4: Simplify right side
    16,087.76x = 304,170,254.45
  5. Step 5: Solve for x
    x = 304,170,254.45/16,087.76
  6. Step 6: Final answer
    x = 18,906.94

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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.