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Finding the Fourth Proportional to 57,495.76, 86,243.64 and 15,942.76

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Solution

The fourth proportional to 57,495.76, 86,243.64 and 15,942.76 is: 23,914.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,495.76 : 86,243.64 = 15,942.76 : x
  2. Step 2: Convert to fraction form
    57,495.76/86,243.64 = 15,942.76/x
  3. Step 3: Cross multiply
    57,495.76x = 86,243.64 × 15,942.76
  4. Step 4: Simplify right side
    57,495.76x = 1,374,961,654.05
  5. Step 5: Solve for x
    x = 1,374,961,654.05/57,495.76
  6. Step 6: Final answer
    x = 23,914.14

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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.