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Finding the Fourth Proportional to 28,814.99, 43,220.96 and 8,824.48

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Solution

The fourth proportional to 28,814.99, 43,220.96 and 8,824.48 is: 13,236.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,814.99 : 43,220.96 = 8,824.48 : x
  2. Step 2: Convert to fraction form
    28,814.99/43,220.96 = 8,824.48/x
  3. Step 3: Cross multiply
    28,814.99x = 43,220.96 × 8,824.48
  4. Step 4: Simplify right side
    28,814.99x = 381,402,236.87
  5. Step 5: Solve for x
    x = 381,402,236.87/28,814.99
  6. Step 6: Final answer
    x = 13,236.24

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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.