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Finding the Fourth Proportional to 16,615, 22,903.14 and 10,939.96

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Solution

The fourth proportional to 16,615, 22,903.14 and 10,939.96 is: 15,080.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,615 : 22,903.14 = 10,939.96 : x
  2. Step 2: Convert to fraction form
    16,615/22,903.14 = 10,939.96/x
  3. Step 3: Cross multiply
    16,615x = 22,903.14 × 10,939.96
  4. Step 4: Simplify right side
    16,615x = 250,559,435.47
  5. Step 5: Solve for x
    x = 250,559,435.47/16,615
  6. Step 6: Final answer
    x = 15,080.32

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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.