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Finding the Fourth Proportional to 67,038.76, 100,556.83 and 27,056.68

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Solution

The fourth proportional to 67,038.76, 100,556.83 and 27,056.68 is: 40,584.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,038.76 : 100,556.83 = 27,056.68 : x
  2. Step 2: Convert to fraction form
    67,038.76/100,556.83 = 27,056.68/x
  3. Step 3: Cross multiply
    67,038.76x = 100,556.83 × 27,056.68
  4. Step 4: Simplify right side
    67,038.76x = 2,720,733,971.12
  5. Step 5: Solve for x
    x = 2,720,733,971.12/67,038.76
  6. Step 6: Final answer
    x = 40,584.49

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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.