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Finding the Fourth Proportional to 57,193.41, 85,790.13 and 15,640.41

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Solution

The fourth proportional to 57,193.41, 85,790.13 and 15,640.41 is: 23,460.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,193.41 : 85,790.13 = 15,640.41 : x
  2. Step 2: Convert to fraction form
    57,193.41/85,790.13 = 15,640.41/x
  3. Step 3: Cross multiply
    57,193.41x = 85,790.13 × 15,640.41
  4. Step 4: Simplify right side
    57,193.41x = 1,341,792,807.15
  5. Step 5: Solve for x
    x = 1,341,792,807.15/57,193.41
  6. Step 6: Final answer
    x = 23,460.62

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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.