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Finding the Fourth Proportional to 8,610.12, 11,881.62 and 5,073.12

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Solution

The fourth proportional to 8,610.12, 11,881.62 and 5,073.12 is: 7,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.12 : 11,881.62 = 5,073.12 : x
  2. Step 2: Convert to fraction form
    8,610.12/11,881.62 = 5,073.12/x
  3. Step 3: Cross multiply
    8,610.12x = 11,881.62 × 5,073.12
  4. Step 4: Simplify right side
    8,610.12x = 60,276,884.05
  5. Step 5: Solve for x
    x = 60,276,884.05/8,610.12
  6. Step 6: Final answer
    x = 7,000.70

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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.