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Finding the Fourth Proportional to 59,943.20, 89,914.80 and 20,496.80

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Solution

The fourth proportional to 59,943.20, 89,914.80 and 20,496.80 is: 30,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,943.20 : 89,914.80 = 20,496.80 : x
  2. Step 2: Convert to fraction form
    59,943.20/89,914.80 = 20,496.80/x
  3. Step 3: Cross multiply
    59,943.20x = 89,914.80 × 20,496.80
  4. Step 4: Simplify right side
    59,943.20x = 1,842,965,672.64
  5. Step 5: Solve for x
    x = 1,842,965,672.64/59,943.20
  6. Step 6: Final answer
    x = 30,745.20

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Similar ratio
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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.