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Finding the Fourth Proportional to 48,898.32, 73,612.86 and 43,818

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Solution

The fourth proportional to 48,898.32, 73,612.86 and 43,818 is: 65,964.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,898.32 : 73,612.86 = 43,818 : x
  2. Step 2: Convert to fraction form
    48,898.32/73,612.86 = 43,818/x
  3. Step 3: Cross multiply
    48,898.32x = 73,612.86 × 43,818
  4. Step 4: Simplify right side
    48,898.32x = 3,225,568,299.48
  5. Step 5: Solve for x
    x = 3,225,568,299.48/48,898.32
  6. Step 6: Final answer
    x = 65,964.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.