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Finding the Fourth Proportional to 48,071.88, 72,073.44 and 18,484.20

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Solution

The fourth proportional to 48,071.88, 72,073.44 and 18,484.20 is: 27,713.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,071.88 : 72,073.44 = 18,484.20 : x
  2. Step 2: Convert to fraction form
    48,071.88/72,073.44 = 18,484.20/x
  3. Step 3: Cross multiply
    48,071.88x = 72,073.44 × 18,484.20
  4. Step 4: Simplify right side
    48,071.88x = 1,332,219,879.65
  5. Step 5: Solve for x
    x = 1,332,219,879.65/48,071.88
  6. Step 6: Final answer
    x = 27,713.08

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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.