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Finding the Fourth Proportional to 19,220.88, 28,844.40 and 7,532.64

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Solution

The fourth proportional to 19,220.88, 28,844.40 and 7,532.64 is: 11,304.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.88 : 28,844.40 = 7,532.64 : x
  2. Step 2: Convert to fraction form
    19,220.88/28,844.40 = 7,532.64/x
  3. Step 3: Cross multiply
    19,220.88x = 28,844.40 × 7,532.64
  4. Step 4: Simplify right side
    19,220.88x = 217,274,481.22
  5. Step 5: Solve for x
    x = 217,274,481.22/19,220.88
  6. Step 6: Final answer
    x = 11,304.09

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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.