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Finding the Fourth Proportional to 19,503.20, 29,221.20 and 9,093.60

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Solution

The fourth proportional to 19,503.20, 29,221.20 and 9,093.60 is: 13,624.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,503.20 : 29,221.20 = 9,093.60 : x
  2. Step 2: Convert to fraction form
    19,503.20/29,221.20 = 9,093.60/x
  3. Step 3: Cross multiply
    19,503.20x = 29,221.20 × 9,093.60
  4. Step 4: Simplify right side
    19,503.20x = 265,725,904.32
  5. Step 5: Solve for x
    x = 265,725,904.32/19,503.20
  6. Step 6: Final answer
    x = 13,624.73

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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.