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Finding the Fourth Proportional to 59,880.92, 89,772.66 and 22,420

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Solution

The fourth proportional to 59,880.92, 89,772.66 and 22,420 is: 33,611.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,880.92 : 89,772.66 = 22,420 : x
  2. Step 2: Convert to fraction form
    59,880.92/89,772.66 = 22,420/x
  3. Step 3: Cross multiply
    59,880.92x = 89,772.66 × 22,420
  4. Step 4: Simplify right side
    59,880.92x = 2,012,703,037.20
  5. Step 5: Solve for x
    x = 2,012,703,037.20/59,880.92
  6. Step 6: Final answer
    x = 33,611.76

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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.