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Finding the Fourth Proportional to 28,913.70, 43,370.55 and 22,352.70

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Solution

The fourth proportional to 28,913.70, 43,370.55 and 22,352.70 is: 33,529.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.70 : 43,370.55 = 22,352.70 : x
  2. Step 2: Convert to fraction form
    28,913.70/43,370.55 = 22,352.70/x
  3. Step 3: Cross multiply
    28,913.70x = 43,370.55 × 22,352.70
  4. Step 4: Simplify right side
    28,913.70x = 969,448,892.99
  5. Step 5: Solve for x
    x = 969,448,892.99/28,913.70
  6. Step 6: Final answer
    x = 33,529.05

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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.