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Finding the Fourth Proportional to 16,921.63, 23,351.85 and 9,469.63

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Solution

The fourth proportional to 16,921.63, 23,351.85 and 9,469.63 is: 13,068.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.63 : 23,351.85 = 9,469.63 : x
  2. Step 2: Convert to fraction form
    16,921.63/23,351.85 = 9,469.63/x
  3. Step 3: Cross multiply
    16,921.63x = 23,351.85 × 9,469.63
  4. Step 4: Simplify right side
    16,921.63x = 221,133,215.21
  5. Step 5: Solve for x
    x = 221,133,215.21/16,921.63
  6. Step 6: Final answer
    x = 13,068.08

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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.