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Finding the Fourth Proportional to 9,255.03, 12,772.26 and 5,063.28

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Solution

The fourth proportional to 9,255.03, 12,772.26 and 5,063.28 is: 6,987.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,255.03 : 12,772.26 = 5,063.28 : x
  2. Step 2: Convert to fraction form
    9,255.03/12,772.26 = 5,063.28/x
  3. Step 3: Cross multiply
    9,255.03x = 12,772.26 × 5,063.28
  4. Step 4: Simplify right side
    9,255.03x = 64,669,528.61
  5. Step 5: Solve for x
    x = 64,669,528.61/9,255.03
  6. Step 6: Final answer
    x = 6,987.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.