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Finding the Fourth Proportional to 28,976.60, 43,471.20 and 16,502.60

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Solution

The fourth proportional to 28,976.60, 43,471.20 and 16,502.60 is: 24,757.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976.60 : 43,471.20 = 16,502.60 : x
  2. Step 2: Convert to fraction form
    28,976.60/43,471.20 = 16,502.60/x
  3. Step 3: Cross multiply
    28,976.60x = 43,471.20 × 16,502.60
  4. Step 4: Simplify right side
    28,976.60x = 717,387,825.12
  5. Step 5: Solve for x
    x = 717,387,825.12/28,976.60
  6. Step 6: Final answer
    x = 24,757.49

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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.