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Finding the Fourth Proportional to 43,466.62, 65,212.30 and 13,886.76

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Solution

The fourth proportional to 43,466.62, 65,212.30 and 13,886.76 is: 20,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,466.62 : 65,212.30 = 13,886.76 : x
  2. Step 2: Convert to fraction form
    43,466.62/65,212.30 = 13,886.76/x
  3. Step 3: Cross multiply
    43,466.62x = 65,212.30 × 13,886.76
  4. Step 4: Simplify right side
    43,466.62x = 905,587,559.15
  5. Step 5: Solve for x
    x = 905,587,559.15/43,466.62
  6. Step 6: Final answer
    x = 20,834.09

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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.