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Finding the Fourth Proportional to 82,014.70, 123,022.05 and 26,610.70

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Solution

The fourth proportional to 82,014.70, 123,022.05 and 26,610.70 is: 39,916.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,014.70 : 123,022.05 = 26,610.70 : x
  2. Step 2: Convert to fraction form
    82,014.70/123,022.05 = 26,610.70/x
  3. Step 3: Cross multiply
    82,014.70x = 123,022.05 × 26,610.70
  4. Step 4: Simplify right side
    82,014.70x = 3,273,702,865.94
  5. Step 5: Solve for x
    x = 3,273,702,865.94/82,014.70
  6. Step 6: Final answer
    x = 39,916.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.