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Finding the Fourth Proportional to 5,963.09, 8,918.40 and 5,309.60

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Solution

The fourth proportional to 5,963.09, 8,918.40 and 5,309.60 is: 7,941.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,963.09 : 8,918.40 = 5,309.60 : x
  2. Step 2: Convert to fraction form
    5,963.09/8,918.40 = 5,309.60/x
  3. Step 3: Cross multiply
    5,963.09x = 8,918.40 × 5,309.60
  4. Step 4: Simplify right side
    5,963.09x = 47,353,136.64
  5. Step 5: Solve for x
    x = 47,353,136.64/5,963.09
  6. Step 6: Final answer
    x = 7,941.04

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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.