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Finding the Fourth Proportional to 58,392.20, 80,591.51 and 55,729.80

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Solution

The fourth proportional to 58,392.20, 80,591.51 and 55,729.80 is: 76,916.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,392.20 : 80,591.51 = 55,729.80 : x
  2. Step 2: Convert to fraction form
    58,392.20/80,591.51 = 55,729.80/x
  3. Step 3: Cross multiply
    58,392.20x = 80,591.51 × 55,729.80
  4. Step 4: Simplify right side
    58,392.20x = 4,491,348,500.01
  5. Step 5: Solve for x
    x = 4,491,348,500.01/58,392.20
  6. Step 6: Final answer
    x = 76,916.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.