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Finding the Fourth Proportional to 4,709.76, 7,063.92 and 2,836.68

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Solution

The fourth proportional to 4,709.76, 7,063.92 and 2,836.68 is: 4,254.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,709.76 : 7,063.92 = 2,836.68 : x
  2. Step 2: Convert to fraction form
    4,709.76/7,063.92 = 2,836.68/x
  3. Step 3: Cross multiply
    4,709.76x = 7,063.92 × 2,836.68
  4. Step 4: Simplify right side
    4,709.76x = 20,038,080.59
  5. Step 5: Solve for x
    x = 20,038,080.59/4,709.76
  6. Step 6: Final answer
    x = 4,254.59

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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.