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Finding the Fourth Proportional to 57,683.67, 86,525.14 and 31,042.21

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Solution

The fourth proportional to 57,683.67, 86,525.14 and 31,042.21 is: 46,563.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,683.67 : 86,525.14 = 31,042.21 : x
  2. Step 2: Convert to fraction form
    57,683.67/86,525.14 = 31,042.21/x
  3. Step 3: Cross multiply
    57,683.67x = 86,525.14 × 31,042.21
  4. Step 4: Simplify right side
    57,683.67x = 2,685,931,492.68
  5. Step 5: Solve for x
    x = 2,685,931,492.68/57,683.67
  6. Step 6: Final answer
    x = 46,563.12

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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.