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Finding the Fourth Proportional to 16,880.24, 25,327.92 and 7,021.64

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Solution

The fourth proportional to 16,880.24, 25,327.92 and 7,021.64 is: 10,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,880.24 : 25,327.92 = 7,021.64 : x
  2. Step 2: Convert to fraction form
    16,880.24/25,327.92 = 7,021.64/x
  3. Step 3: Cross multiply
    16,880.24x = 25,327.92 × 7,021.64
  4. Step 4: Simplify right side
    16,880.24x = 177,843,536.19
  5. Step 5: Solve for x
    x = 177,843,536.19/16,880.24
  6. Step 6: Final answer
    x = 10,535.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.