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Finding the Fourth Proportional to 57,246.70, 85,860.87 and 15,683.98

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Solution

The fourth proportional to 57,246.70, 85,860.87 and 15,683.98 is: 23,523.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,246.70 : 85,860.87 = 15,683.98 : x
  2. Step 2: Convert to fraction form
    57,246.70/85,860.87 = 15,683.98/x
  3. Step 3: Cross multiply
    57,246.70x = 85,860.87 × 15,683.98
  4. Step 4: Simplify right side
    57,246.70x = 1,346,640,167.86
  5. Step 5: Solve for x
    x = 1,346,640,167.86/57,246.70
  6. Step 6: Final answer
    x = 23,523.45

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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.