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Finding the Fourth Proportional to 16,594.21, 22,900.05 and 9,879.78

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Solution

The fourth proportional to 16,594.21, 22,900.05 and 9,879.78 is: 13,634.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,594.21 : 22,900.05 = 9,879.78 : x
  2. Step 2: Convert to fraction form
    16,594.21/22,900.05 = 9,879.78/x
  3. Step 3: Cross multiply
    16,594.21x = 22,900.05 × 9,879.78
  4. Step 4: Simplify right side
    16,594.21x = 226,247,455.99
  5. Step 5: Solve for x
    x = 226,247,455.99/16,594.21
  6. Step 6: Final answer
    x = 13,634.12

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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.