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Finding the Fourth Proportional to 16,237.69, 22,408.08 and 8,785.69

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Solution

The fourth proportional to 16,237.69, 22,408.08 and 8,785.69 is: 12,124.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,237.69 : 22,408.08 = 8,785.69 : x
  2. Step 2: Convert to fraction form
    16,237.69/22,408.08 = 8,785.69/x
  3. Step 3: Cross multiply
    16,237.69x = 22,408.08 × 8,785.69
  4. Step 4: Simplify right side
    16,237.69x = 196,870,366.39
  5. Step 5: Solve for x
    x = 196,870,366.39/16,237.69
  6. Step 6: Final answer
    x = 12,124.29

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Half scale
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Double scale
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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.