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Finding the Fourth Proportional to 58,711.80, 81,025.74 and 33,220.38

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Solution

The fourth proportional to 58,711.80, 81,025.74 and 33,220.38 is: 45,846.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,711.80 : 81,025.74 = 33,220.38 : x
  2. Step 2: Convert to fraction form
    58,711.80/81,025.74 = 33,220.38/x
  3. Step 3: Cross multiply
    58,711.80x = 81,025.74 × 33,220.38
  4. Step 4: Simplify right side
    58,711.80x = 2,691,705,872.58
  5. Step 5: Solve for x
    x = 2,691,705,872.58/58,711.80
  6. Step 6: Final answer
    x = 45,846.08

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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.