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Finding the Fourth Proportional to 13,655.64, 20,483.46 and 3,794.93

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Solution

The fourth proportional to 13,655.64, 20,483.46 and 3,794.93 is: 5,692.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.64 : 20,483.46 = 3,794.93 : x
  2. Step 2: Convert to fraction form
    13,655.64/20,483.46 = 3,794.93/x
  3. Step 3: Cross multiply
    13,655.64x = 20,483.46 × 3,794.93
  4. Step 4: Simplify right side
    13,655.64x = 77,733,194.44
  5. Step 5: Solve for x
    x = 77,733,194.44/13,655.64
  6. Step 6: Final answer
    x = 5,692.39

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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.