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Finding the Fourth Proportional to 59,894.40, 89,733.60 and 28,660.80

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Solution

The fourth proportional to 59,894.40, 89,733.60 and 28,660.80 is: 42,939.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,894.40 : 89,733.60 = 28,660.80 : x
  2. Step 2: Convert to fraction form
    59,894.40/89,733.60 = 28,660.80/x
  3. Step 3: Cross multiply
    59,894.40x = 89,733.60 × 28,660.80
  4. Step 4: Simplify right side
    59,894.40x = 2,571,836,762.88
  5. Step 5: Solve for x
    x = 2,571,836,762.88/59,894.40
  6. Step 6: Final answer
    x = 42,939.52

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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.