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Finding the Fourth Proportional to 48,600.54, 72,904.86 and 13,539.96

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Solution

The fourth proportional to 48,600.54, 72,904.86 and 13,539.96 is: 20,311.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,600.54 : 72,904.86 = 13,539.96 : x
  2. Step 2: Convert to fraction form
    48,600.54/72,904.86 = 13,539.96/x
  3. Step 3: Cross multiply
    48,600.54x = 72,904.86 × 13,539.96
  4. Step 4: Simplify right side
    48,600.54x = 987,128,888.21
  5. Step 5: Solve for x
    x = 987,128,888.21/48,600.54
  6. Step 6: Final answer
    x = 20,311.07

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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.