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Finding the Fourth Proportional to 7,469.64, 11,208.24 and 3,090.24

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Solution

The fourth proportional to 7,469.64, 11,208.24 and 3,090.24 is: 4,636.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,469.64 : 11,208.24 = 3,090.24 : x
  2. Step 2: Convert to fraction form
    7,469.64/11,208.24 = 3,090.24/x
  3. Step 3: Cross multiply
    7,469.64x = 11,208.24 × 3,090.24
  4. Step 4: Simplify right side
    7,469.64x = 34,636,151.58
  5. Step 5: Solve for x
    x = 34,636,151.58/7,469.64
  6. Step 6: Final answer
    x = 4,636.92

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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.