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Finding the Fourth Proportional to 43,585.79, 65,383.74 and 18,628.74

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Solution

The fourth proportional to 43,585.79, 65,383.74 and 18,628.74 is: 27,945.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,585.79 : 65,383.74 = 18,628.74 : x
  2. Step 2: Convert to fraction form
    43,585.79/65,383.74 = 18,628.74/x
  3. Step 3: Cross multiply
    43,585.79x = 65,383.74 × 18,628.74
  4. Step 4: Simplify right side
    43,585.79x = 1,218,016,692.69
  5. Step 5: Solve for x
    x = 1,218,016,692.69/43,585.79
  6. Step 6: Final answer
    x = 27,945.27

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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.