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Finding the Fourth Proportional to 8,613, 11,884.10 and 5,074.92

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Solution

The fourth proportional to 8,613, 11,884.10 and 5,074.92 is: 7,002.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613 : 11,884.10 = 5,074.92 : x
  2. Step 2: Convert to fraction form
    8,613/11,884.10 = 5,074.92/x
  3. Step 3: Cross multiply
    8,613x = 11,884.10 × 5,074.92
  4. Step 4: Simplify right side
    8,613x = 60,310,856.77
  5. Step 5: Solve for x
    x = 60,310,856.77/8,613
  6. Step 6: Final answer
    x = 7,002.31

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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.