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Finding the Fourth Proportional to 59,981.70, 82,682.13 and 43,005.12

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Solution

The fourth proportional to 59,981.70, 82,682.13 and 43,005.12 is: 59,280.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,981.70 : 82,682.13 = 43,005.12 : x
  2. Step 2: Convert to fraction form
    59,981.70/82,682.13 = 43,005.12/x
  3. Step 3: Cross multiply
    59,981.70x = 82,682.13 × 43,005.12
  4. Step 4: Simplify right side
    59,981.70x = 3,555,754,922.51
  5. Step 5: Solve for x
    x = 3,555,754,922.51/59,981.70
  6. Step 6: Final answer
    x = 59,280.66

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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.