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Finding the Fourth Proportional to 32,579.80, 48,860.10 and 12,851.80

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Solution

The fourth proportional to 32,579.80, 48,860.10 and 12,851.80 is: 19,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,579.80 : 48,860.10 = 12,851.80 : x
  2. Step 2: Convert to fraction form
    32,579.80/48,860.10 = 12,851.80/x
  3. Step 3: Cross multiply
    32,579.80x = 48,860.10 × 12,851.80
  4. Step 4: Simplify right side
    32,579.80x = 627,940,233.18
  5. Step 5: Solve for x
    x = 627,940,233.18/32,579.80
  6. Step 6: Final answer
    x = 19,273.91

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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.