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Finding the Fourth Proportional to 2,711.64, 3,740.68 and 1,769.02

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Solution

The fourth proportional to 2,711.64, 3,740.68 and 1,769.02 is: 2,440.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711.64 : 3,740.68 = 1,769.02 : x
  2. Step 2: Convert to fraction form
    2,711.64/3,740.68 = 1,769.02/x
  3. Step 3: Cross multiply
    2,711.64x = 3,740.68 × 1,769.02
  4. Step 4: Simplify right side
    2,711.64x = 6,617,337.73
  5. Step 5: Solve for x
    x = 6,617,337.73/2,711.64
  6. Step 6: Final answer
    x = 2,440.35

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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.