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Finding the Fourth Proportional to 52,912.67, 79,371.44 and 13,470.12

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Solution

The fourth proportional to 52,912.67, 79,371.44 and 13,470.12 is: 20,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,912.67 : 79,371.44 = 13,470.12 : x
  2. Step 2: Convert to fraction form
    52,912.67/79,371.44 = 13,470.12/x
  3. Step 3: Cross multiply
    52,912.67x = 79,371.44 × 13,470.12
  4. Step 4: Simplify right side
    52,912.67x = 1,069,142,754.02
  5. Step 5: Solve for x
    x = 1,069,142,754.02/52,912.67
  6. Step 6: Final answer
    x = 20,205.80

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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.