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Finding the Fourth Proportional to 16,003.80, 22,083.06 and 8,929.32

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Solution

The fourth proportional to 16,003.80, 22,083.06 and 8,929.32 is: 12,321.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,003.80 : 22,083.06 = 8,929.32 : x
  2. Step 2: Convert to fraction form
    16,003.80/22,083.06 = 8,929.32/x
  3. Step 3: Cross multiply
    16,003.80x = 22,083.06 × 8,929.32
  4. Step 4: Simplify right side
    16,003.80x = 197,186,709.32
  5. Step 5: Solve for x
    x = 197,186,709.32/16,003.80
  6. Step 6: Final answer
    x = 12,321.24

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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.