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Finding the Fourth Proportional to 34,939.70, 52,408.95 and 8,644.46

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Solution

The fourth proportional to 34,939.70, 52,408.95 and 8,644.46 is: 12,966.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,939.70 : 52,408.95 = 8,644.46 : x
  2. Step 2: Convert to fraction form
    34,939.70/52,408.95 = 8,644.46/x
  3. Step 3: Cross multiply
    34,939.70x = 52,408.95 × 8,644.46
  4. Step 4: Simplify right side
    34,939.70x = 453,047,071.92
  5. Step 5: Solve for x
    x = 453,047,071.92/34,939.70
  6. Step 6: Final answer
    x = 12,966.54

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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.