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Finding the Fourth Proportional to 48,964.50, 73,447.56 and 21,262.50

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Solution

The fourth proportional to 48,964.50, 73,447.56 and 21,262.50 is: 31,894.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,964.50 : 73,447.56 = 21,262.50 : x
  2. Step 2: Convert to fraction form
    48,964.50/73,447.56 = 21,262.50/x
  3. Step 3: Cross multiply
    48,964.50x = 73,447.56 × 21,262.50
  4. Step 4: Simplify right side
    48,964.50x = 1,561,678,744.50
  5. Step 5: Solve for x
    x = 1,561,678,744.50/48,964.50
  6. Step 6: Final answer
    x = 31,894.10

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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.