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Finding the Fourth Proportional to 43,776.52, 65,665.14 and 18,814.84

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Solution

The fourth proportional to 43,776.52, 65,665.14 and 18,814.84 is: 28,222.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,776.52 : 65,665.14 = 18,814.84 : x
  2. Step 2: Convert to fraction form
    43,776.52/65,665.14 = 18,814.84/x
  3. Step 3: Cross multiply
    43,776.52x = 65,665.14 × 18,814.84
  4. Step 4: Simplify right side
    43,776.52x = 1,235,479,102.68
  5. Step 5: Solve for x
    x = 1,235,479,102.68/43,776.52
  6. Step 6: Final answer
    x = 28,222.41

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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.