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Finding the Fourth Proportional to 48,888.39, 73,367.56 and 20,828.10

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Solution

The fourth proportional to 48,888.39, 73,367.56 and 20,828.10 is: 31,257.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,888.39 : 73,367.56 = 20,828.10 : x
  2. Step 2: Convert to fraction form
    48,888.39/73,367.56 = 20,828.10/x
  3. Step 3: Cross multiply
    48,888.39x = 73,367.56 × 20,828.10
  4. Step 4: Simplify right side
    48,888.39x = 1,528,106,824.37
  5. Step 5: Solve for x
    x = 1,528,106,824.37/48,888.39
  6. Step 6: Final answer
    x = 31,257.05

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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.