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Finding the Fourth Proportional to 10,968.88, 15,137.12 and 6,253.12

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Solution

The fourth proportional to 10,968.88, 15,137.12 and 6,253.12 is: 8,629.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.88 : 15,137.12 = 6,253.12 : x
  2. Step 2: Convert to fraction form
    10,968.88/15,137.12 = 6,253.12/x
  3. Step 3: Cross multiply
    10,968.88x = 15,137.12 × 6,253.12
  4. Step 4: Simplify right side
    10,968.88x = 94,654,227.81
  5. Step 5: Solve for x
    x = 94,654,227.81/10,968.88
  6. Step 6: Final answer
    x = 8,629.34

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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.