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Finding the Fourth Proportional to 57,773.55, 79,683.51 and 49,720.62

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Solution

The fourth proportional to 57,773.55, 79,683.51 and 49,720.62 is: 68,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,773.55 : 79,683.51 = 49,720.62 : x
  2. Step 2: Convert to fraction form
    57,773.55/79,683.51 = 49,720.62/x
  3. Step 3: Cross multiply
    57,773.55x = 79,683.51 × 49,720.62
  4. Step 4: Simplify right side
    57,773.55x = 3,961,913,520.98
  5. Step 5: Solve for x
    x = 3,961,913,520.98/57,773.55
  6. Step 6: Final answer
    x = 68,576.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.