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Finding the Fourth Proportional to 48,739.84, 73,139.84 and 19,152.48

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Solution

The fourth proportional to 48,739.84, 73,139.84 and 19,152.48 is: 28,740.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,739.84 : 73,139.84 = 19,152.48 : x
  2. Step 2: Convert to fraction form
    48,739.84/73,139.84 = 19,152.48/x
  3. Step 3: Cross multiply
    48,739.84x = 73,139.84 × 19,152.48
  4. Step 4: Simplify right side
    48,739.84x = 1,400,809,322.80
  5. Step 5: Solve for x
    x = 1,400,809,322.80/48,739.84
  6. Step 6: Final answer
    x = 28,740.54

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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.