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Finding the Fourth Proportional to 8,674.12, 13,011.13 and 2,100.34

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Solution

The fourth proportional to 8,674.12, 13,011.13 and 2,100.34 is: 3,150.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.12 : 13,011.13 = 2,100.34 : x
  2. Step 2: Convert to fraction form
    8,674.12/13,011.13 = 2,100.34/x
  3. Step 3: Cross multiply
    8,674.12x = 13,011.13 × 2,100.34
  4. Step 4: Simplify right side
    8,674.12x = 27,327,796.78
  5. Step 5: Solve for x
    x = 27,327,796.78/8,674.12
  6. Step 6: Final answer
    x = 3,150.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.