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Finding the Fourth Proportional to 7,063.55, 9,744.03 and 4,190.61

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Solution

The fourth proportional to 7,063.55, 9,744.03 and 4,190.61 is: 5,780.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,063.55 : 9,744.03 = 4,190.61 : x
  2. Step 2: Convert to fraction form
    7,063.55/9,744.03 = 4,190.61/x
  3. Step 3: Cross multiply
    7,063.55x = 9,744.03 × 4,190.61
  4. Step 4: Simplify right side
    7,063.55x = 40,833,421.01
  5. Step 5: Solve for x
    x = 40,833,421.01/7,063.55
  6. Step 6: Final answer
    x = 5,780.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.