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Finding the Fourth Proportional to 16,005.90, 22,089.39 and 8,933.38

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Solution

The fourth proportional to 16,005.90, 22,089.39 and 8,933.38 is: 12,328.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,005.90 : 22,089.39 = 8,933.38 : x
  2. Step 2: Convert to fraction form
    16,005.90/22,089.39 = 8,933.38/x
  3. Step 3: Cross multiply
    16,005.90x = 22,089.39 × 8,933.38
  4. Step 4: Simplify right side
    16,005.90x = 197,332,970.06
  5. Step 5: Solve for x
    x = 197,332,970.06/16,005.90
  6. Step 6: Final answer
    x = 12,328.77

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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.