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Finding the Fourth Proportional to 64,481.84, 96,723.44 and 19,503.56

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Solution

The fourth proportional to 64,481.84, 96,723.44 and 19,503.56 is: 29,255.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,481.84 : 96,723.44 = 19,503.56 : x
  2. Step 2: Convert to fraction form
    64,481.84/96,723.44 = 19,503.56/x
  3. Step 3: Cross multiply
    64,481.84x = 96,723.44 × 19,503.56
  4. Step 4: Simplify right side
    64,481.84x = 1,886,451,415.45
  5. Step 5: Solve for x
    x = 1,886,451,415.45/64,481.84
  6. Step 6: Final answer
    x = 29,255.55

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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.