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Finding the Fourth Proportional to 7,903.20, 11,833.20 and 6,175.20

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Solution

The fourth proportional to 7,903.20, 11,833.20 and 6,175.20 is: 9,245.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.20 : 11,833.20 = 6,175.20 : x
  2. Step 2: Convert to fraction form
    7,903.20/11,833.20 = 6,175.20/x
  3. Step 3: Cross multiply
    7,903.20x = 11,833.20 × 6,175.20
  4. Step 4: Simplify right side
    7,903.20x = 73,072,376.64
  5. Step 5: Solve for x
    x = 73,072,376.64/7,903.20
  6. Step 6: Final answer
    x = 9,245.92

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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.