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Finding the Fourth Proportional to 13,604.99, 20,411.89 and 6,674.63

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Solution

The fourth proportional to 13,604.99, 20,411.89 and 6,674.63 is: 10,014.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,604.99 : 20,411.89 = 6,674.63 : x
  2. Step 2: Convert to fraction form
    13,604.99/20,411.89 = 6,674.63/x
  3. Step 3: Cross multiply
    13,604.99x = 20,411.89 × 6,674.63
  4. Step 4: Simplify right side
    13,604.99x = 136,241,677.92
  5. Step 5: Solve for x
    x = 136,241,677.92/13,604.99
  6. Step 6: Final answer
    x = 10,014.10

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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.