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Finding the Fourth Proportional to 9,073.12, 13,611.02 and 4,913.70

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Solution

The fourth proportional to 9,073.12, 13,611.02 and 4,913.70 is: 7,371.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,073.12 : 13,611.02 = 4,913.70 : x
  2. Step 2: Convert to fraction form
    9,073.12/13,611.02 = 4,913.70/x
  3. Step 3: Cross multiply
    9,073.12x = 13,611.02 × 4,913.70
  4. Step 4: Simplify right side
    9,073.12x = 66,880,468.97
  5. Step 5: Solve for x
    x = 66,880,468.97/9,073.12
  6. Step 6: Final answer
    x = 7,371.28

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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.