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Finding the Fourth Proportional to 74,516.68, 111,792.78 and 21,927.88

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Solution

The fourth proportional to 74,516.68, 111,792.78 and 21,927.88 is: 32,897.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,516.68 : 111,792.78 = 21,927.88 : x
  2. Step 2: Convert to fraction form
    74,516.68/111,792.78 = 21,927.88/x
  3. Step 3: Cross multiply
    74,516.68x = 111,792.78 × 21,927.88
  4. Step 4: Simplify right side
    74,516.68x = 2,451,378,664.71
  5. Step 5: Solve for x
    x = 2,451,378,664.71/74,516.68
  6. Step 6: Final answer
    x = 32,897.05

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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.