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Finding the Fourth Proportional to 28,498.60, 42,750.33 and 7,441.44

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Solution

The fourth proportional to 28,498.60, 42,750.33 and 7,441.44 is: 11,162.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.60 : 42,750.33 = 7,441.44 : x
  2. Step 2: Convert to fraction form
    28,498.60/42,750.33 = 7,441.44/x
  3. Step 3: Cross multiply
    28,498.60x = 42,750.33 × 7,441.44
  4. Step 4: Simplify right side
    28,498.60x = 318,124,015.68
  5. Step 5: Solve for x
    x = 318,124,015.68/28,498.60
  6. Step 6: Final answer
    x = 11,162.79

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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.