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Finding the Fourth Proportional to 29,807.72, 44,711.39 and 7,621.05

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Solution

The fourth proportional to 29,807.72, 44,711.39 and 7,621.05 is: 11,431.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,807.72 : 44,711.39 = 7,621.05 : x
  2. Step 2: Convert to fraction form
    29,807.72/44,711.39 = 7,621.05/x
  3. Step 3: Cross multiply
    29,807.72x = 44,711.39 × 7,621.05
  4. Step 4: Simplify right side
    29,807.72x = 340,747,757.81
  5. Step 5: Solve for x
    x = 340,747,757.81/29,807.72
  6. Step 6: Final answer
    x = 11,431.53

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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.