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Finding the Fourth Proportional to 4,910.79, 6,769.02 and 3,316.93

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Solution

The fourth proportional to 4,910.79, 6,769.02 and 3,316.93 is: 4,572.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.79 : 6,769.02 = 3,316.93 : x
  2. Step 2: Convert to fraction form
    4,910.79/6,769.02 = 3,316.93/x
  3. Step 3: Cross multiply
    4,910.79x = 6,769.02 × 3,316.93
  4. Step 4: Simplify right side
    4,910.79x = 22,452,365.85
  5. Step 5: Solve for x
    x = 22,452,365.85/4,910.79
  6. Step 6: Final answer
    x = 4,572.05

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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.