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Finding the Fourth Proportional to 43,790.82, 65,695.82 and 14,211.63

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Solution

The fourth proportional to 43,790.82, 65,695.82 and 14,211.63 is: 21,320.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,790.82 : 65,695.82 = 14,211.63 : x
  2. Step 2: Convert to fraction form
    43,790.82/65,695.82 = 14,211.63/x
  3. Step 3: Cross multiply
    43,790.82x = 65,695.82 × 14,211.63
  4. Step 4: Simplify right side
    43,790.82x = 933,644,615.33
  5. Step 5: Solve for x
    x = 933,644,615.33/43,790.82
  6. Step 6: Final answer
    x = 21,320.56

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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.