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Finding the Fourth Proportional to 29,647.60, 44,568.60 and 20,942.80

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Solution

The fourth proportional to 29,647.60, 44,568.60 and 20,942.80 is: 31,482.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,647.60 : 44,568.60 = 20,942.80 : x
  2. Step 2: Convert to fraction form
    29,647.60/44,568.60 = 20,942.80/x
  3. Step 3: Cross multiply
    29,647.60x = 44,568.60 × 20,942.80
  4. Step 4: Simplify right side
    29,647.60x = 933,391,276.08
  5. Step 5: Solve for x
    x = 933,391,276.08/29,647.60
  6. Step 6: Final answer
    x = 31,482.86

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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.