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Finding the Fourth Proportional to 8,892.79, 12,257.87 and 7,001.37

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Solution

The fourth proportional to 8,892.79, 12,257.87 and 7,001.37 is: 9,650.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,892.79 : 12,257.87 = 7,001.37 : x
  2. Step 2: Convert to fraction form
    8,892.79/12,257.87 = 7,001.37/x
  3. Step 3: Cross multiply
    8,892.79x = 12,257.87 × 7,001.37
  4. Step 4: Simplify right side
    8,892.79x = 85,821,883.28
  5. Step 5: Solve for x
    x = 85,821,883.28/8,892.79
  6. Step 6: Final answer
    x = 9,650.73

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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.