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Finding the Fourth Proportional to 9,307.26, 12,844.26 and 5,328.78

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Solution

The fourth proportional to 9,307.26, 12,844.26 and 5,328.78 is: 7,353.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,307.26 : 12,844.26 = 5,328.78 : x
  2. Step 2: Convert to fraction form
    9,307.26/12,844.26 = 5,328.78/x
  3. Step 3: Cross multiply
    9,307.26x = 12,844.26 × 5,328.78
  4. Step 4: Simplify right side
    9,307.26x = 68,444,235.80
  5. Step 5: Solve for x
    x = 68,444,235.80/9,307.26
  6. Step 6: Final answer
    x = 7,353.85

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1.5x scale

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.