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Finding the Fourth Proportional to 48,662.10, 72,993.15 and 38,820.60

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Solution

The fourth proportional to 48,662.10, 72,993.15 and 38,820.60 is: 58,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,662.10 : 72,993.15 = 38,820.60 : x
  2. Step 2: Convert to fraction form
    48,662.10/72,993.15 = 38,820.60/x
  3. Step 3: Cross multiply
    48,662.10x = 72,993.15 × 38,820.60
  4. Step 4: Simplify right side
    48,662.10x = 2,833,637,878.89
  5. Step 5: Solve for x
    x = 2,833,637,878.89/48,662.10
  6. Step 6: Final answer
    x = 58,230.90

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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.