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Finding the Fourth Proportional to 29,942.80, 44,918.20 and 10,216.40

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Solution

The fourth proportional to 29,942.80, 44,918.20 and 10,216.40 is: 15,325.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,942.80 : 44,918.20 = 10,216.40 : x
  2. Step 2: Convert to fraction form
    29,942.80/44,918.20 = 10,216.40/x
  3. Step 3: Cross multiply
    29,942.80x = 44,918.20 × 10,216.40
  4. Step 4: Simplify right side
    29,942.80x = 458,902,298.48
  5. Step 5: Solve for x
    x = 458,902,298.48/29,942.80
  6. Step 6: Final answer
    x = 15,325.96

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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.