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Finding the Fourth Proportional to 82,266.70, 113,508.53 and 47,790.92

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Solution

The fourth proportional to 82,266.70, 113,508.53 and 47,790.92 is: 65,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,266.70 : 113,508.53 = 47,790.92 : x
  2. Step 2: Convert to fraction form
    82,266.70/113,508.53 = 47,790.92/x
  3. Step 3: Cross multiply
    82,266.70x = 113,508.53 × 47,790.92
  4. Step 4: Simplify right side
    82,266.70x = 5,424,677,121.36
  5. Step 5: Solve for x
    x = 5,424,677,121.36/82,266.70
  6. Step 6: Final answer
    x = 65,940.13

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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.