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Finding the Fourth Proportional to 9,043.64, 13,635.20 and 8,987.48

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Solution

The fourth proportional to 9,043.64, 13,635.20 and 8,987.48 is: 13,550.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,043.64 : 13,635.20 = 8,987.48 : x
  2. Step 2: Convert to fraction form
    9,043.64/13,635.20 = 8,987.48/x
  3. Step 3: Cross multiply
    9,043.64x = 13,635.20 × 8,987.48
  4. Step 4: Simplify right side
    9,043.64x = 122,546,087.30
  5. Step 5: Solve for x
    x = 122,546,087.30/9,043.64
  6. Step 6: Final answer
    x = 13,550.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.