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Finding the Fourth Proportional to 9,512.76, 13,127.76 and 5,735.88

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Solution

The fourth proportional to 9,512.76, 13,127.76 and 5,735.88 is: 7,915.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,512.76 : 13,127.76 = 5,735.88 : x
  2. Step 2: Convert to fraction form
    9,512.76/13,127.76 = 5,735.88/x
  3. Step 3: Cross multiply
    9,512.76x = 13,127.76 × 5,735.88
  4. Step 4: Simplify right side
    9,512.76x = 75,299,256.03
  5. Step 5: Solve for x
    x = 75,299,256.03/9,512.76
  6. Step 6: Final answer
    x = 7,915.61

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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.