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Finding the Fourth Proportional to 18,836.69, 25,996.72 and 12,037.00

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Solution

The fourth proportional to 18,836.69, 25,996.72 and 12,037.00 is: 16,612.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,836.69 : 25,996.72 = 12,037.00 : x
  2. Step 2: Convert to fraction form
    18,836.69/25,996.72 = 12,037.00/x
  3. Step 3: Cross multiply
    18,836.69x = 25,996.72 × 12,037.00
  4. Step 4: Simplify right side
    18,836.69x = 312,922,423.56
  5. Step 5: Solve for x
    x = 312,922,423.56/18,836.69
  6. Step 6: Final answer
    x = 16,612.39

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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.