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Finding the Fourth Proportional to 60,604.08, 90,919.89 and 18,487.93

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Solution

The fourth proportional to 60,604.08, 90,919.89 and 18,487.93 is: 27,736.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,604.08 : 90,919.89 = 18,487.93 : x
  2. Step 2: Convert to fraction form
    60,604.08/90,919.89 = 18,487.93/x
  3. Step 3: Cross multiply
    60,604.08x = 90,919.89 × 18,487.93
  4. Step 4: Simplify right side
    60,604.08x = 1,680,920,334.63
  5. Step 5: Solve for x
    x = 1,680,920,334.63/60,604.08
  6. Step 6: Final answer
    x = 27,736.09

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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.