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Finding the Fourth Proportional to 13,336.70, 20,005.05 and 10,744.70

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Solution

The fourth proportional to 13,336.70, 20,005.05 and 10,744.70 is: 16,117.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.70 : 20,005.05 = 10,744.70 : x
  2. Step 2: Convert to fraction form
    13,336.70/20,005.05 = 10,744.70/x
  3. Step 3: Cross multiply
    13,336.70x = 20,005.05 × 10,744.70
  4. Step 4: Simplify right side
    13,336.70x = 214,948,260.74
  5. Step 5: Solve for x
    x = 214,948,260.74/13,336.70
  6. Step 6: Final answer
    x = 16,117.05

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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.