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Finding the Fourth Proportional to 59,909.40, 82,678.50 and 33,057.90

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Solution

The fourth proportional to 59,909.40, 82,678.50 and 33,057.90 is: 45,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,909.40 : 82,678.50 = 33,057.90 : x
  2. Step 2: Convert to fraction form
    59,909.40/82,678.50 = 33,057.90/x
  3. Step 3: Cross multiply
    59,909.40x = 82,678.50 × 33,057.90
  4. Step 4: Simplify right side
    59,909.40x = 2,733,177,585.15
  5. Step 5: Solve for x
    x = 2,733,177,585.15/59,909.40
  6. Step 6: Final answer
    x = 45,621.85

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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.