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Finding the Fourth Proportional to 48,458.80, 72,688.20 and 33,713.20

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Solution

The fourth proportional to 48,458.80, 72,688.20 and 33,713.20 is: 50,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,458.80 : 72,688.20 = 33,713.20 : x
  2. Step 2: Convert to fraction form
    48,458.80/72,688.20 = 33,713.20/x
  3. Step 3: Cross multiply
    48,458.80x = 72,688.20 × 33,713.20
  4. Step 4: Simplify right side
    48,458.80x = 2,450,551,824.24
  5. Step 5: Solve for x
    x = 2,450,551,824.24/48,458.80
  6. Step 6: Final answer
    x = 50,569.80

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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.