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Finding the Fourth Proportional to 16,890.99, 25,322.81 and 7,037.64

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Solution

The fourth proportional to 16,890.99, 25,322.81 and 7,037.64 is: 10,550.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.99 : 25,322.81 = 7,037.64 : x
  2. Step 2: Convert to fraction form
    16,890.99/25,322.81 = 7,037.64/x
  3. Step 3: Cross multiply
    16,890.99x = 25,322.81 × 7,037.64
  4. Step 4: Simplify right side
    16,890.99x = 178,212,820.57
  5. Step 5: Solve for x
    x = 178,212,820.57/16,890.99
  6. Step 6: Final answer
    x = 10,550.76

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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.