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Finding the Fourth Proportional to 10,971.77, 15,137.07 and 6,253.31

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Solution

The fourth proportional to 10,971.77, 15,137.07 and 6,253.31 is: 8,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.77 : 15,137.07 = 6,253.31 : x
  2. Step 2: Convert to fraction form
    10,971.77/15,137.07 = 6,253.31/x
  3. Step 3: Cross multiply
    10,971.77x = 15,137.07 × 6,253.31
  4. Step 4: Simplify right side
    10,971.77x = 94,656,715.52
  5. Step 5: Solve for x
    x = 94,656,715.52/10,971.77
  6. Step 6: Final answer
    x = 8,627.30

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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.