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Finding the Fourth Proportional to 50,959.29, 76,361 and 21,360.99

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Solution

The fourth proportional to 50,959.29, 76,361 and 21,360.99 is: 32,008.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,959.29 : 76,361 = 21,360.99 : x
  2. Step 2: Convert to fraction form
    50,959.29/76,361 = 21,360.99/x
  3. Step 3: Cross multiply
    50,959.29x = 76,361 × 21,360.99
  4. Step 4: Simplify right side
    50,959.29x = 1,631,146,557.39
  5. Step 5: Solve for x
    x = 1,631,146,557.39/50,959.29
  6. Step 6: Final answer
    x = 32,008.82

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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.