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Finding the Fourth Proportional to 57,950.60, 86,925.90 and 18,511.70

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Solution

The fourth proportional to 57,950.60, 86,925.90 and 18,511.70 is: 27,767.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,950.60 : 86,925.90 = 18,511.70 : x
  2. Step 2: Convert to fraction form
    57,950.60/86,925.90 = 18,511.70/x
  3. Step 3: Cross multiply
    57,950.60x = 86,925.90 × 18,511.70
  4. Step 4: Simplify right side
    57,950.60x = 1,609,146,183.03
  5. Step 5: Solve for x
    x = 1,609,146,183.03/57,950.60
  6. Step 6: Final answer
    x = 27,767.55

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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.