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Finding the Fourth Proportional to 9,263.44, 12,781 and 5,283.12

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Solution

The fourth proportional to 9,263.44, 12,781 and 5,283.12 is: 7,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,263.44 : 12,781 = 5,283.12 : x
  2. Step 2: Convert to fraction form
    9,263.44/12,781 = 5,283.12/x
  3. Step 3: Cross multiply
    9,263.44x = 12,781 × 5,283.12
  4. Step 4: Simplify right side
    9,263.44x = 67,523,556.72
  5. Step 5: Solve for x
    x = 67,523,556.72/9,263.44
  6. Step 6: Final answer
    x = 7,289.25

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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.