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Finding the Fourth Proportional to 16,424.96, 22,668 and 9,351.20

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Solution

The fourth proportional to 16,424.96, 22,668 and 9,351.20 is: 12,905.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,424.96 : 22,668 = 9,351.20 : x
  2. Step 2: Convert to fraction form
    16,424.96/22,668 = 9,351.20/x
  3. Step 3: Cross multiply
    16,424.96x = 22,668 × 9,351.20
  4. Step 4: Simplify right side
    16,424.96x = 211,973,001.60
  5. Step 5: Solve for x
    x = 211,973,001.60/16,424.96
  6. Step 6: Final answer
    x = 12,905.54

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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.