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Finding the Fourth Proportional to 48,273.99, 72,390.45 and 21,995.43

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Solution

The fourth proportional to 48,273.99, 72,390.45 and 21,995.43 is: 32,983.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,273.99 : 72,390.45 = 21,995.43 : x
  2. Step 2: Convert to fraction form
    48,273.99/72,390.45 = 21,995.43/x
  3. Step 3: Cross multiply
    48,273.99x = 72,390.45 × 21,995.43
  4. Step 4: Simplify right side
    48,273.99x = 1,592,259,075.64
  5. Step 5: Solve for x
    x = 1,592,259,075.64/48,273.99
  6. Step 6: Final answer
    x = 32,983.79

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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.