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Finding the Fourth Proportional to 48,574.50, 72,871.57 and 20,494.62

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Solution

The fourth proportional to 48,574.50, 72,871.57 and 20,494.62 is: 30,746.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,574.50 : 72,871.57 = 20,494.62 : x
  2. Step 2: Convert to fraction form
    48,574.50/72,871.57 = 20,494.62/x
  3. Step 3: Cross multiply
    48,574.50x = 72,871.57 × 20,494.62
  4. Step 4: Simplify right side
    48,574.50x = 1,493,475,033.48
  5. Step 5: Solve for x
    x = 1,493,475,033.48/48,574.50
  6. Step 6: Final answer
    x = 30,746.07

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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.