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Finding the Fourth Proportional to 28,944.92, 43,416.90 and 9,223.21

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Solution

The fourth proportional to 28,944.92, 43,416.90 and 9,223.21 is: 13,834.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,944.92 : 43,416.90 = 9,223.21 : x
  2. Step 2: Convert to fraction form
    28,944.92/43,416.90 = 9,223.21/x
  3. Step 3: Cross multiply
    28,944.92x = 43,416.90 × 9,223.21
  4. Step 4: Simplify right side
    28,944.92x = 400,442,969.16
  5. Step 5: Solve for x
    x = 400,442,969.16/28,944.92
  6. Step 6: Final answer
    x = 13,834.66

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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.