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Finding the Fourth Proportional to 28,749.60, 43,156.80 and 22,204.80

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Solution

The fourth proportional to 28,749.60, 43,156.80 and 22,204.80 is: 33,332.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.60 : 43,156.80 = 22,204.80 : x
  2. Step 2: Convert to fraction form
    28,749.60/43,156.80 = 22,204.80/x
  3. Step 3: Cross multiply
    28,749.60x = 43,156.80 × 22,204.80
  4. Step 4: Simplify right side
    28,749.60x = 958,288,112.64
  5. Step 5: Solve for x
    x = 958,288,112.64/28,749.60
  6. Step 6: Final answer
    x = 33,332.22

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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.