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Finding the Fourth Proportional to 18,553.77, 27,830.25 and 4,513.86

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Solution

The fourth proportional to 18,553.77, 27,830.25 and 4,513.86 is: 6,770.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.77 : 27,830.25 = 4,513.86 : x
  2. Step 2: Convert to fraction form
    18,553.77/27,830.25 = 4,513.86/x
  3. Step 3: Cross multiply
    18,553.77x = 27,830.25 × 4,513.86
  4. Step 4: Simplify right side
    18,553.77x = 125,621,852.27
  5. Step 5: Solve for x
    x = 125,621,852.27/18,553.77
  6. Step 6: Final answer
    x = 6,770.69

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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.