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Finding the Fourth Proportional to 11,203.92, 15,454.92 and 7,004.88

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Solution

The fourth proportional to 11,203.92, 15,454.92 and 7,004.88 is: 9,662.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,203.92 : 15,454.92 = 7,004.88 : x
  2. Step 2: Convert to fraction form
    11,203.92/15,454.92 = 7,004.88/x
  3. Step 3: Cross multiply
    11,203.92x = 15,454.92 × 7,004.88
  4. Step 4: Simplify right side
    11,203.92x = 108,259,860.01
  5. Step 5: Solve for x
    x = 108,259,860.01/11,203.92
  6. Step 6: Final answer
    x = 9,662.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.