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Finding the Fourth Proportional to 48,989.80, 73,484.70 and 17,821.48

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Solution

The fourth proportional to 48,989.80, 73,484.70 and 17,821.48 is: 26,732.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,989.80 : 73,484.70 = 17,821.48 : x
  2. Step 2: Convert to fraction form
    48,989.80/73,484.70 = 17,821.48/x
  3. Step 3: Cross multiply
    48,989.80x = 73,484.70 × 17,821.48
  4. Step 4: Simplify right side
    48,989.80x = 1,309,606,111.36
  5. Step 5: Solve for x
    x = 1,309,606,111.36/48,989.80
  6. Step 6: Final answer
    x = 26,732.22

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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.