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Finding the Fourth Proportional to 5,309.51, 7,961.18 and 1,798.34

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Solution

The fourth proportional to 5,309.51, 7,961.18 and 1,798.34 is: 2,696.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.51 : 7,961.18 = 1,798.34 : x
  2. Step 2: Convert to fraction form
    5,309.51/7,961.18 = 1,798.34/x
  3. Step 3: Cross multiply
    5,309.51x = 7,961.18 × 1,798.34
  4. Step 4: Simplify right side
    5,309.51x = 14,316,908.44
  5. Step 5: Solve for x
    x = 14,316,908.44/5,309.51
  6. Step 6: Final answer
    x = 2,696.47

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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.