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Finding the Fourth Proportional to 5,681.12, 8,503.25 and 4,893.80

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Solution

The fourth proportional to 5,681.12, 8,503.25 and 4,893.80 is: 7,324.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.12 : 8,503.25 = 4,893.80 : x
  2. Step 2: Convert to fraction form
    5,681.12/8,503.25 = 4,893.80/x
  3. Step 3: Cross multiply
    5,681.12x = 8,503.25 × 4,893.80
  4. Step 4: Simplify right side
    5,681.12x = 41,613,137.86
  5. Step 5: Solve for x
    x = 41,613,137.86/5,681.12
  6. Step 6: Final answer
    x = 7,324.82

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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.