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Finding the Fourth Proportional to 16,622.62, 22,939.40 and 9,907.11

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Solution

The fourth proportional to 16,622.62, 22,939.40 and 9,907.11 is: 13,671.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,622.62 : 22,939.40 = 9,907.11 : x
  2. Step 2: Convert to fraction form
    16,622.62/22,939.40 = 9,907.11/x
  3. Step 3: Cross multiply
    16,622.62x = 22,939.40 × 9,907.11
  4. Step 4: Simplify right side
    16,622.62x = 227,263,183.90
  5. Step 5: Solve for x
    x = 227,263,183.90/16,622.62
  6. Step 6: Final answer
    x = 13,671.93

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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.