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Finding the Fourth Proportional to 16,785.81, 25,180.13 and 5,099.13

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Solution

The fourth proportional to 16,785.81, 25,180.13 and 5,099.13 is: 7,649.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,785.81 : 25,180.13 = 5,099.13 : x
  2. Step 2: Convert to fraction form
    16,785.81/25,180.13 = 5,099.13/x
  3. Step 3: Cross multiply
    16,785.81x = 25,180.13 × 5,099.13
  4. Step 4: Simplify right side
    16,785.81x = 128,396,769.03
  5. Step 5: Solve for x
    x = 128,396,769.03/16,785.81
  6. Step 6: Final answer
    x = 7,649.13

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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.