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Finding the Fourth Proportional to 16,785.60, 25,168.80 and 6,913.14

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Solution

The fourth proportional to 16,785.60, 25,168.80 and 6,913.14 is: 10,365.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,785.60 : 25,168.80 = 6,913.14 : x
  2. Step 2: Convert to fraction form
    16,785.60/25,168.80 = 6,913.14/x
  3. Step 3: Cross multiply
    16,785.60x = 25,168.80 × 6,913.14
  4. Step 4: Simplify right side
    16,785.60x = 173,995,438.03
  5. Step 5: Solve for x
    x = 173,995,438.03/16,785.60
  6. Step 6: Final answer
    x = 10,365.76

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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.