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Finding the Fourth Proportional to 5,503.74, 8,259.66 and 3,164.88

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Solution

The fourth proportional to 5,503.74, 8,259.66 and 3,164.88 is: 4,749.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,503.74 : 8,259.66 = 3,164.88 : x
  2. Step 2: Convert to fraction form
    5,503.74/8,259.66 = 3,164.88/x
  3. Step 3: Cross multiply
    5,503.74x = 8,259.66 × 3,164.88
  4. Step 4: Simplify right side
    5,503.74x = 26,140,832.74
  5. Step 5: Solve for x
    x = 26,140,832.74/5,503.74
  6. Step 6: Final answer
    x = 4,749.65

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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.