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Finding the Fourth Proportional to 43,483.62, 65,225.88 and 13,900.80

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Solution

The fourth proportional to 43,483.62, 65,225.88 and 13,900.80 is: 20,851.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,483.62 : 65,225.88 = 13,900.80 : x
  2. Step 2: Convert to fraction form
    43,483.62/65,225.88 = 13,900.80/x
  3. Step 3: Cross multiply
    43,483.62x = 65,225.88 × 13,900.80
  4. Step 4: Simplify right side
    43,483.62x = 906,691,912.70
  5. Step 5: Solve for x
    x = 906,691,912.70/43,483.62
  6. Step 6: Final answer
    x = 20,851.34

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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.