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Finding the Fourth Proportional to 28,896.60, 43,344.90 and 15,043.80

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Solution

The fourth proportional to 28,896.60, 43,344.90 and 15,043.80 is: 22,565.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,896.60 : 43,344.90 = 15,043.80 : x
  2. Step 2: Convert to fraction form
    28,896.60/43,344.90 = 15,043.80/x
  3. Step 3: Cross multiply
    28,896.60x = 43,344.90 × 15,043.80
  4. Step 4: Simplify right side
    28,896.60x = 652,072,006.62
  5. Step 5: Solve for x
    x = 652,072,006.62/28,896.60
  6. Step 6: Final answer
    x = 22,565.70

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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.