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Finding the Fourth Proportional to 59,639.80, 82,310.70 and 38,480.62

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Solution

The fourth proportional to 59,639.80, 82,310.70 and 38,480.62 is: 53,108.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,639.80 : 82,310.70 = 38,480.62 : x
  2. Step 2: Convert to fraction form
    59,639.80/82,310.70 = 38,480.62/x
  3. Step 3: Cross multiply
    59,639.80x = 82,310.70 × 38,480.62
  4. Step 4: Simplify right side
    59,639.80x = 3,167,366,768.63
  5. Step 5: Solve for x
    x = 3,167,366,768.63/59,639.80
  6. Step 6: Final answer
    x = 53,108.27

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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.