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Finding the Fourth Proportional to 29,809.20, 44,665.20 and 28,059.60

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Solution

The fourth proportional to 29,809.20, 44,665.20 and 28,059.60 is: 42,043.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,809.20 : 44,665.20 = 28,059.60 : x
  2. Step 2: Convert to fraction form
    29,809.20/44,665.20 = 28,059.60/x
  3. Step 3: Cross multiply
    29,809.20x = 44,665.20 × 28,059.60
  4. Step 4: Simplify right side
    29,809.20x = 1,253,287,645.92
  5. Step 5: Solve for x
    x = 1,253,287,645.92/29,809.20
  6. Step 6: Final answer
    x = 42,043.65

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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.