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Finding the Fourth Proportional to 16,898.56, 25,327.76 and 7,880.56

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Solution

The fourth proportional to 16,898.56, 25,327.76 and 7,880.56 is: 11,811.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,898.56 : 25,327.76 = 7,880.56 : x
  2. Step 2: Convert to fraction form
    16,898.56/25,327.76 = 7,880.56/x
  3. Step 3: Cross multiply
    16,898.56x = 25,327.76 × 7,880.56
  4. Step 4: Simplify right side
    16,898.56x = 199,596,829.62
  5. Step 5: Solve for x
    x = 199,596,829.62/16,898.56
  6. Step 6: Final answer
    x = 11,811.47

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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.