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Finding the Fourth Proportional to 53,770.91, 80,580.02 and 39,619.67

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Solution

The fourth proportional to 53,770.91, 80,580.02 and 39,619.67 is: 59,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,770.91 : 80,580.02 = 39,619.67 : x
  2. Step 2: Convert to fraction form
    53,770.91/80,580.02 = 39,619.67/x
  3. Step 3: Cross multiply
    53,770.91x = 80,580.02 × 39,619.67
  4. Step 4: Simplify right side
    53,770.91x = 3,192,553,199.99
  5. Step 5: Solve for x
    x = 3,192,553,199.99/53,770.91
  6. Step 6: Final answer
    x = 59,373.25

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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.