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Finding the Fourth Proportional to 60,795.72, 91,208.88 and 18,677.88

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Solution

The fourth proportional to 60,795.72, 91,208.88 and 18,677.88 is: 28,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,795.72 : 91,208.88 = 18,677.88 : x
  2. Step 2: Convert to fraction form
    60,795.72/91,208.88 = 18,677.88/x
  3. Step 3: Cross multiply
    60,795.72x = 91,208.88 × 18,677.88
  4. Step 4: Simplify right side
    60,795.72x = 1,703,588,515.57
  5. Step 5: Solve for x
    x = 1,703,588,515.57/60,795.72
  6. Step 6: Final answer
    x = 28,021.52

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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.