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Finding the Fourth Proportional to 57,441.60, 86,174.52 and 28,994.76

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Solution

The fourth proportional to 57,441.60, 86,174.52 and 28,994.76 is: 43,498.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,441.60 : 86,174.52 = 28,994.76 : x
  2. Step 2: Convert to fraction form
    57,441.60/86,174.52 = 28,994.76/x
  3. Step 3: Cross multiply
    57,441.60x = 86,174.52 × 28,994.76
  4. Step 4: Simplify right side
    57,441.60x = 2,498,609,525.52
  5. Step 5: Solve for x
    x = 2,498,609,525.52/57,441.60
  6. Step 6: Final answer
    x = 43,498.26

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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.