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Finding the Fourth Proportional to 58,310.35, 80,493.11 and 39,201.21

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Solution

The fourth proportional to 58,310.35, 80,493.11 and 39,201.21 is: 54,114.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,310.35 : 80,493.11 = 39,201.21 : x
  2. Step 2: Convert to fraction form
    58,310.35/80,493.11 = 39,201.21/x
  3. Step 3: Cross multiply
    58,310.35x = 80,493.11 × 39,201.21
  4. Step 4: Simplify right side
    58,310.35x = 3,155,427,404.71
  5. Step 5: Solve for x
    x = 3,155,427,404.71/58,310.35
  6. Step 6: Final answer
    x = 54,114.36

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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.