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Finding the Fourth Proportional to 71,339.03, 106,916.94 and 26,912.85

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Solution

The fourth proportional to 71,339.03, 106,916.94 and 26,912.85 is: 40,334.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,339.03 : 106,916.94 = 26,912.85 : x
  2. Step 2: Convert to fraction form
    71,339.03/106,916.94 = 26,912.85/x
  3. Step 3: Cross multiply
    71,339.03x = 106,916.94 × 26,912.85
  4. Step 4: Simplify right side
    71,339.03x = 2,877,439,568.68
  5. Step 5: Solve for x
    x = 2,877,439,568.68/71,339.03
  6. Step 6: Final answer
    x = 40,334.72

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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.