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Finding the Fourth Proportional to 16,808, 23,195.20 and 9,356.16

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Solution

The fourth proportional to 16,808, 23,195.20 and 9,356.16 is: 12,911.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,808 : 23,195.20 = 9,356.16 : x
  2. Step 2: Convert to fraction form
    16,808/23,195.20 = 9,356.16/x
  3. Step 3: Cross multiply
    16,808x = 23,195.20 × 9,356.16
  4. Step 4: Simplify right side
    16,808x = 217,018,002.43
  5. Step 5: Solve for x
    x = 217,018,002.43/16,808
  6. Step 6: Final answer
    x = 12,911.59

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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.