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Finding the Fourth Proportional to 60,733.20, 91,112.88 and 18,616.20

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Solution

The fourth proportional to 60,733.20, 91,112.88 and 18,616.20 is: 27,928.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,733.20 : 91,112.88 = 18,616.20 : x
  2. Step 2: Convert to fraction form
    60,733.20/91,112.88 = 18,616.20/x
  3. Step 3: Cross multiply
    60,733.20x = 91,112.88 × 18,616.20
  4. Step 4: Simplify right side
    60,733.20x = 1,696,175,230.49
  5. Step 5: Solve for x
    x = 1,696,175,230.49/60,733.20
  6. Step 6: Final answer
    x = 27,928.30

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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.