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Finding the Fourth Proportional to 58,620.60, 80,891.64 and 33,129.27

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Solution

The fourth proportional to 58,620.60, 80,891.64 and 33,129.27 is: 45,715.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,620.60 : 80,891.64 = 33,129.27 : x
  2. Step 2: Convert to fraction form
    58,620.60/80,891.64 = 33,129.27/x
  3. Step 3: Cross multiply
    58,620.60x = 80,891.64 × 33,129.27
  4. Step 4: Simplify right side
    58,620.60x = 2,679,880,982.30
  5. Step 5: Solve for x
    x = 2,679,880,982.30/58,620.60
  6. Step 6: Final answer
    x = 45,715.69

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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.