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Finding the Fourth Proportional to 7,495.20, 11,248.20 and 4,204.80

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Solution

The fourth proportional to 7,495.20, 11,248.20 and 4,204.80 is: 6,310.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,495.20 : 11,248.20 = 4,204.80 : x
  2. Step 2: Convert to fraction form
    7,495.20/11,248.20 = 4,204.80/x
  3. Step 3: Cross multiply
    7,495.20x = 11,248.20 × 4,204.80
  4. Step 4: Simplify right side
    7,495.20x = 47,296,431.36
  5. Step 5: Solve for x
    x = 47,296,431.36/7,495.20
  6. Step 6: Final answer
    x = 6,310.23

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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.