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Finding the Fourth Proportional to 60,513.63, 90,770.43 and 18,394.05

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Solution

The fourth proportional to 60,513.63, 90,770.43 and 18,394.05 is: 27,591.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,513.63 : 90,770.43 = 18,394.05 : x
  2. Step 2: Convert to fraction form
    60,513.63/90,770.43 = 18,394.05/x
  3. Step 3: Cross multiply
    60,513.63x = 90,770.43 × 18,394.05
  4. Step 4: Simplify right side
    60,513.63x = 1,669,635,827.94
  5. Step 5: Solve for x
    x = 1,669,635,827.94/60,513.63
  6. Step 6: Final answer
    x = 27,591.07

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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.