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Finding the Fourth Proportional to 11,497.60, 17,230.20 and 4,564

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Solution

The fourth proportional to 11,497.60, 17,230.20 and 4,564 is: 6,839.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,497.60 : 17,230.20 = 4,564 : x
  2. Step 2: Convert to fraction form
    11,497.60/17,230.20 = 4,564/x
  3. Step 3: Cross multiply
    11,497.60x = 17,230.20 × 4,564
  4. Step 4: Simplify right side
    11,497.60x = 78,638,632.80
  5. Step 5: Solve for x
    x = 78,638,632.80/11,497.60
  6. Step 6: Final answer
    x = 6,839.57

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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.