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Finding the Fourth Proportional to 58,605.60, 80,876.70 and 33,106.80

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Solution

The fourth proportional to 58,605.60, 80,876.70 and 33,106.80 is: 45,687.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,605.60 : 80,876.70 = 33,106.80 : x
  2. Step 2: Convert to fraction form
    58,605.60/80,876.70 = 33,106.80/x
  3. Step 3: Cross multiply
    58,605.60x = 80,876.70 × 33,106.80
  4. Step 4: Simplify right side
    58,605.60x = 2,677,568,731.56
  5. Step 5: Solve for x
    x = 2,677,568,731.56/58,605.60
  6. Step 6: Final answer
    x = 45,687.93

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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.