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Finding the Fourth Proportional to 74,364, 111,524.13 and 21,760.98

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Solution

The fourth proportional to 74,364, 111,524.13 and 21,760.98 is: 32,635.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,364 : 111,524.13 = 21,760.98 : x
  2. Step 2: Convert to fraction form
    74,364/111,524.13 = 21,760.98/x
  3. Step 3: Cross multiply
    74,364x = 111,524.13 × 21,760.98
  4. Step 4: Simplify right side
    74,364x = 2,426,874,362.45
  5. Step 5: Solve for x
    x = 2,426,874,362.45/74,364
  6. Step 6: Final answer
    x = 32,635.07

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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.