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Finding the Fourth Proportional to 13,375.70, 20,056.26 and 10,620.08

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Solution

The fourth proportional to 13,375.70, 20,056.26 and 10,620.08 is: 15,924.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.70 : 20,056.26 = 10,620.08 : x
  2. Step 2: Convert to fraction form
    13,375.70/20,056.26 = 10,620.08/x
  3. Step 3: Cross multiply
    13,375.70x = 20,056.26 × 10,620.08
  4. Step 4: Simplify right side
    13,375.70x = 212,999,085.70
  5. Step 5: Solve for x
    x = 212,999,085.70/13,375.70
  6. Step 6: Final answer
    x = 15,924.33

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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.