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Finding the Fourth Proportional to 59,616.80, 89,194.80 and 38,880.80

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Solution

The fourth proportional to 59,616.80, 89,194.80 and 38,880.80 is: 58,170.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,616.80 : 89,194.80 = 38,880.80 : x
  2. Step 2: Convert to fraction form
    59,616.80/89,194.80 = 38,880.80/x
  3. Step 3: Cross multiply
    59,616.80x = 89,194.80 × 38,880.80
  4. Step 4: Simplify right side
    59,616.80x = 3,467,965,179.84
  5. Step 5: Solve for x
    x = 3,467,965,179.84/59,616.80
  6. Step 6: Final answer
    x = 58,170.94

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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.