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Finding the Fourth Proportional to 48,124.80, 72,187.20 and 27,388.80

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Solution

The fourth proportional to 48,124.80, 72,187.20 and 27,388.80 is: 41,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,124.80 : 72,187.20 = 27,388.80 : x
  2. Step 2: Convert to fraction form
    48,124.80/72,187.20 = 27,388.80/x
  3. Step 3: Cross multiply
    48,124.80x = 72,187.20 × 27,388.80
  4. Step 4: Simplify right side
    48,124.80x = 1,977,120,783.36
  5. Step 5: Solve for x
    x = 1,977,120,783.36/48,124.80
  6. Step 6: Final answer
    x = 41,083.20

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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.