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Finding the Fourth Proportional to 5,295.76, 7,943.96 and 1,785.48

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Solution

The fourth proportional to 5,295.76, 7,943.96 and 1,785.48 is: 2,678.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,295.76 : 7,943.96 = 1,785.48 : x
  2. Step 2: Convert to fraction form
    5,295.76/7,943.96 = 1,785.48/x
  3. Step 3: Cross multiply
    5,295.76x = 7,943.96 × 1,785.48
  4. Step 4: Simplify right side
    5,295.76x = 14,183,781.70
  5. Step 5: Solve for x
    x = 14,183,781.70/5,295.76
  6. Step 6: Final answer
    x = 2,678.33

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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.