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Finding the Fourth Proportional to 5,259.74, 7,889.60 and 1,364.11

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Solution

The fourth proportional to 5,259.74, 7,889.60 and 1,364.11 is: 2,046.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.74 : 7,889.60 = 1,364.11 : x
  2. Step 2: Convert to fraction form
    5,259.74/7,889.60 = 1,364.11/x
  3. Step 3: Cross multiply
    5,259.74x = 7,889.60 × 1,364.11
  4. Step 4: Simplify right side
    5,259.74x = 10,762,265.94
  5. Step 5: Solve for x
    x = 10,762,265.94/5,259.74
  6. Step 6: Final answer
    x = 2,046.16

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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.